{"id":22453,"date":"2026-03-13T17:18:24","date_gmt":"2026-03-13T16:18:24","guid":{"rendered":"https:\/\/reperes-astro.fr\/?p=22453"},"modified":"2026-03-14T12:25:06","modified_gmt":"2026-03-14T11:25:06","slug":"tutoriel-siril-1-4","status":"publish","type":"post","link":"https:\/\/reperes-astro.fr\/tutoriel-siril-1-4\/","title":{"rendered":"Tutoriel Siril 1.4"},"content":{"rendered":"\n<p>Ci-dessous un tutoriel Siril 1.4 (et sup\u00e9rieur, version actuelle <strong><a href=\"https:\/\/siril.org\/fr\/download\/\">Siril 1.4.2<\/a><\/strong>). Depuis sa cr\u00e9ation, ce logiciel n&rsquo;a cess\u00e9 d&rsquo;\u00e9voluer pour satisfaire au mieux ses utilisateurs passionn\u00e9s d&rsquo;astrophotographies.<\/p>\n\n\n\n<p>Un grand bond en avant a eu lieu avec la sortie de la version 1.4.0 et l&rsquo;int\u00e9gration de nouveaux scripts Python.<\/p>\n\n\n\n<p>Nous allons voir aujourd&rsquo;hui comment installer et utiliser quelques unes de ces nouveaut\u00e9s.<\/p>\n\n\n\n<p>Ce tutoriel Siril 1.4 a \u00e9t\u00e9 r\u00e9dig\u00e9 par <strong>Simon-Pierre<\/strong> \u00e0 la suite d&rsquo;une journ\u00e9e d&rsquo;\u00e9change sur ce sujet \u00e0 l&rsquo;Observatoire Rep\u00e8res Astro, anim\u00e9e par <strong>St\u00e9phane Losacco<\/strong> (SLO) mais \u00e9galement aussi gr\u00e2ce aux conseils de <strong>Cyril Richard<\/strong> (lock042) et <strong>Michel Collard<\/strong> (colmic).<\/p>\n\n\n\n<p>Version PDF =&gt; <a href=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/Siril_utilisation_scripts_python.V1.pdf\"><strong>ici<\/strong><\/a><\/p>\n\n\n\n<div class=\"wp-block-columns is-not-stacked-on-mobile is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n<\/div>\n\n\n\n<p><strong>SiriL<\/strong> est un programme de traitement d&rsquo;images astronomiques, capable&nbsp;:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignright size-full\"><a href=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/logo-siril.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"343\" height=\"147\" src=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/logo-siril.jpg\" alt=\"\" class=\"wp-image-22455\" srcset=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/logo-siril.jpg 343w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/logo-siril-300x129.jpg 300w\" sizes=\"auto, (max-width: 343px) 100vw, 343px\" \/><\/a><\/figure>\n<\/div>\n\n\n<ul class=\"wp-block-list\">\n<li>de convertir les images,<\/li>\n\n\n\n<li>de les pr\u00e9-traiter,<\/li>\n\n\n\n<li>de les aligner automatiquement ou manuellement,<\/li>\n\n\n\n<li>de les empiler,<\/li>\n\n\n\n<li>d&rsquo;am\u00e9liorer les images finales,<\/li>\n\n\n\n<li>et bien d&rsquo;autres choses encore \u2026<\/li>\n<\/ul>\n\n\n\n<div class=\"wp-block-columns is-not-stacked-on-mobile is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading has-medium-font-size\"><strong>SOMMAIRE :<\/strong><\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong><a href=\"#maj\">Mise \u00e0 jour et installation de SiriL<\/a><\/strong><\/li>\n\n\n\n<li><strong><a href=\"#preparatifs\">Pr\u00e9paratifs<\/a><\/strong><\/li>\n\n\n\n<li><strong><a href=\"#pretraitement\">Pr\u00e9-traitement<\/a><\/strong><\/li>\n\n\n\n<li><strong><a href=\"#traitement\">Traitement : utilisation des scripts Python<\/a> :<\/strong> <\/li>\n<\/ol>\n\n\n\n<div class=\"wp-block-columns is-not-stacked-on-mobile is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:15%\">\n<p class=\"has-text-align-left\"><\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:55%\">\n<ul class=\"wp-block-list\">\n<li><strong><a href=\"#crop\">Red\u00e9coupage de l&rsquo;image (Crop)<\/a><\/strong><\/li>\n\n\n\n<li><strong><a href=\"#extraction\">Extraction du gradient<\/a><\/strong><\/li>\n\n\n\n<li><strong><a href=\"#balance\">Balance des blancs<\/a><\/strong><\/li>\n\n\n\n<li><strong><a href=\"#couleurs\">\u00c9talonnage des couleurs<\/a><\/strong><\/li>\n\n\n\n<li><strong><a href=\"#aberrations\">R\u00e9duction des aberrations<\/a><\/strong><\/li>\n\n\n\n<li><strong><a href=\"#bruit\">R\u00e9duction du bruit<\/a><\/strong><\/li>\n\n\n\n<li><strong><a href=\"#starless\">StarLess<\/a><\/strong><\/li>\n\n\n\n<li><strong><a href=\"#histogramme\">\u00c9tirement de l&rsquo;histogramme<\/a><\/strong><\/li>\n\n\n\n<li><strong><a href=\"#courbes\">Courbes<\/a><\/strong><\/li>\n\n\n\n<li><strong><a href=\"#details\">Augmenter les d\u00e9tails<\/a><\/strong><\/li>\n\n\n\n<li><strong><a href=\"#saturation\">Saturation des couleurs<\/a><\/strong><\/li>\n\n\n\n<li><strong><a href=\"#bruitvert\">Suppression du bruit vert<\/a><\/strong><\/li>\n\n\n\n<li><strong><a href=\"#etoiles\">R\u00e9cup\u00e9ration des \u00e9toiles<\/a><\/strong><\/li>\n\n\n\n<li><strong><a href=\"#sauvegarde\">Sauvegarde<\/a><\/strong><\/li>\n<\/ul>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:30%\"><div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/livre-siril.webp\"><img loading=\"lazy\" decoding=\"async\" width=\"420\" height=\"639\" src=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/livre-siril.webp\" alt=\"tutoriel siril 1.4\" class=\"wp-image-22464\" srcset=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/livre-siril.webp 420w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/livre-siril-197x300.webp 197w\" sizes=\"auto, (max-width: 420px) 100vw, 420px\" \/><\/a><\/figure>\n<\/div><\/div>\n<\/div>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-columns is-not-stacked-on-mobile is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\" id=\"maj\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading has-medium-font-size\">1. <strong><span style=\"text-decoration: underline;\">Mise \u00e0 jour et installation de Siril<\/span> :<\/strong><\/h2>\n\n\n\n<p>Avant de d\u00e9buter vos traitements assurez-vous que votre logiciel SiriL soit \u00e0 jour.<br>Au moment de la r\u00e9daction de ce tutoriel, la derni\u00e8re version de SiriL est la&nbsp;: 1.4.2<\/p>\n\n\n\n<p>Au lancement, si SiriL n&rsquo;est pas \u00e0 jour la fen\u00eatre suivante s&rsquo;affiche&nbsp;:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><a href=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/maj-siril.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"932\" height=\"670\" src=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/maj-siril.jpg\" alt=\"tutoriel siril 1.4\" class=\"wp-image-22472\" style=\"width:500px\" srcset=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/maj-siril.jpg 932w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/maj-siril-300x216.jpg 300w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/maj-siril-768x552.jpg 768w\" sizes=\"auto, (max-width: 932px) 100vw, 932px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p><\/p>\n\n\n\n<p>Cliquez sur le lien en haut (<strong><a href=\"https:\/\/siril.org\/download\/1.4.2\">https:\/\/siril.org\/download\/1.4.2<\/a><\/strong>) de cette fen\u00eatre puis t\u00e9l\u00e9charger la derni\u00e8re version en fonction de votre syst\u00e8me d&rsquo;exploitation (windows, Mac \u2026).<\/p>\n\n\n\n<p>Une fois t\u00e9l\u00e9charg\u00e9 il suffit d&rsquo;ex\u00e9cuter le \u00ab\u00a0fichier siril-1.4.2-setup\u00a0\u00bb et de vous laisser guider jusqu&rsquo;\u00e0 la fin de l&rsquo;installation.<\/p>\n\n\n\n<p class=\"has-text-align-center\">BRAVO, VOTRE LOGICIEL EST A JOUR !<\/p>\n\n\n\n<div class=\"wp-block-columns is-not-stacked-on-mobile is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n<\/div>\n\n\n\n<p><strong>Ensuite il va falloir t\u00e9l\u00e9charger les ressources :<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Script GPU_Manager<\/li>\n\n\n\n<li>ONNX Runtime<\/li>\n\n\n\n<li>PyTorch<\/li>\n<\/ul>\n\n\n\n<p>Pour cela, depuis la fen\u00eatre principale rendez vous dans Scripts Python =&gt; Core =&gt; GPU_Manager.py.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><a href=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/script-siril.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"200\" src=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/script-siril.jpg\" alt=\"\" class=\"wp-image-22475\" style=\"width:500px\" srcset=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/script-siril.jpg 600w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/script-siril-300x100.jpg 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p><\/p>\n\n\n\n<p>Une nouvelle fen\u00eatre va s&rsquo;ouvrir dans laquelle 2 onglets nous int\u00e9ressent, \u00ab\u00a0ONNX Runtime\u00a0\u00bb et \u00ab\u00a0PyTorch\u00a0\u00bb.<\/p>\n\n\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-not-stacked-on-mobile is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/ONNX.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"473\" src=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/ONNX.jpg\" alt=\"\" class=\"wp-image-22476\" srcset=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/ONNX.jpg 600w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/ONNX-300x237.jpg 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/pytorch.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"471\" src=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/pytorch.jpg\" alt=\"\" class=\"wp-image-22477\" srcset=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/pytorch.jpg 600w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/pytorch-300x236.jpg 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><\/figure>\n<\/div>\n<\/div>\n\n\n\n<p><\/p>\n\n\n\n<p>Dans chacun de ces deux onglets, Cliquez sur \u00ab\u00a0Install Recommanded\u00a0\u00bb. Le t\u00e9l\u00e9chargement peut \u00eatre assez long.<\/p>\n\n\n\n<p>Une fois termin\u00e9 vous pouvez fermer cette fen\u00eatre.<\/p>\n\n\n\n<div class=\"wp-block-columns is-not-stacked-on-mobile is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n<\/div>\n\n\n\n<p><strong>Maintenant nous allons installer les scripts :<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Veralux<\/li>\n\n\n\n<li>SyQon-Starless<\/li>\n\n\n\n<li>SyQon-Prism<\/li>\n\n\n\n<li>Statistical_Stretch<\/li>\n\n\n\n<li>NB_2_RGB<\/li>\n\n\n\n<li>CosmicClarity_Native<\/li>\n\n\n\n<li>AutoBGE<\/li>\n\n\n\n<li>AberrationRemover<\/li>\n<\/ul>\n\n\n\n<p>Sur la fen\u00eatre principale de SiriL, ouvrir le menu&nbsp;: Scripts =&gt; Obtenir des scripts<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/obtenir-scripts.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"126\" src=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/obtenir-scripts.jpg\" alt=\"\" class=\"wp-image-22489\" srcset=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/obtenir-scripts.jpg 500w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/obtenir-scripts-300x76.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p><\/p>\n\n\n\n<p>Tapez, tour \u00e0 tour, tous les scripts mentionn\u00e9s juste au-dessus dans la barre de recherche puis cochez chacune des lignes (\u00e0 droite) et pour finir appuyez sur le bouton \u00ab\u00a0Appliquer\u00a0\u00bb.<\/p>\n\n\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-not-stacked-on-mobile is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\"><div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/veralux.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"182\" src=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/veralux.jpg\" alt=\"\" class=\"wp-image-22478\" srcset=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/veralux.jpg 500w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/veralux-300x109.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\"><div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/SyQon-Starless.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"179\" src=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/SyQon-Starless.jpg\" alt=\"\" class=\"wp-image-22480\" srcset=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/SyQon-Starless.jpg 500w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/SyQon-Starless-300x107.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure>\n<\/div><\/div>\n<\/div>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-not-stacked-on-mobile is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\"><div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/SyQon-Prism.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"180\" src=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/SyQon-Prism.jpg\" alt=\"\" class=\"wp-image-22481\" srcset=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/SyQon-Prism.jpg 500w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/SyQon-Prism-300x108.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\"><div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/Statistical_Stretch.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"180\" src=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/Statistical_Stretch.jpg\" alt=\"\" class=\"wp-image-22482\" srcset=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/Statistical_Stretch.jpg 500w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/Statistical_Stretch-300x108.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure>\n<\/div><\/div>\n<\/div>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-columns is-not-stacked-on-mobile is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\"><div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/NB_2_RGB.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"177\" src=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/NB_2_RGB.jpg\" alt=\"\" class=\"wp-image-22483\" srcset=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/NB_2_RGB.jpg 500w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/NB_2_RGB-300x106.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\"><div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/CosmicClarity_Native.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"177\" src=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/CosmicClarity_Native.jpg\" alt=\"\" class=\"wp-image-22484\" srcset=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/CosmicClarity_Native.jpg 500w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/CosmicClarity_Native-300x106.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure>\n<\/div><\/div>\n<\/div>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-not-stacked-on-mobile is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\"><div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/AutoBGE.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"179\" src=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/AutoBGE.jpg\" alt=\"\" class=\"wp-image-22485\" style=\"object-fit:cover\" srcset=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/AutoBGE.jpg 500w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/AutoBGE-300x107.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/aberration.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"180\" src=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/aberration.jpg\" alt=\"\" class=\"wp-image-22529\" srcset=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/aberration.jpg 500w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/aberration-300x108.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns is-not-stacked-on-mobile is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\" id=\"preparatifs\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading has-medium-font-size\">2. <strong><span style=\"text-decoration: underline;\">Pr\u00e9paratifs<\/span> :<\/strong><\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignright size-medium is-resized\"><a href=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/preferences.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"237\" height=\"300\" src=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/preferences-237x300.jpg\" alt=\"\" class=\"wp-image-22490\" style=\"width:200px\" srcset=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/preferences-237x300.jpg 237w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/preferences.jpg 300w\" sizes=\"auto, (max-width: 237px) 100vw, 237px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p><strong>Pr\u00e9paration de l&rsquo;auto-ajustement :<\/strong><\/p>\n\n\n\n<p>Cliquer sur le hamburger&nbsp;: Pr\u00e9f\u00e9rences =&gt; Performances<\/p>\n\n\n\n<p>Saisissez \u00ab\u00a024\u00a0\u00bb comme valeur de profondeur de bit par d\u00e9faut pour l&rsquo;auto-ajustement HD.<\/p>\n\n\n\n<p>Cliquez ensuite sur le bouton \u00ab\u00a0Appliquer la profondeur de bit\u00a0\u00bb.<\/p>\n\n\n\n<p>Et pour finir sur le bouton \u00ab\u00a0Appliquer\u00a0\u00bb en bas \u00e0 droite de la fen\u00eatre.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/preferences-perf.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"355\" src=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/preferences-perf.jpg\" alt=\"tutoriel siril 1.4\" class=\"wp-image-22492\" srcset=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/preferences-perf.jpg 500w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/preferences-perf-300x213.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure>\n<\/div>\n\n\n<div class=\"wp-block-columns is-not-stacked-on-mobile is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n<\/div>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignright size-full\"><a href=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/auto-ajust.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"200\" height=\"198\" src=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/auto-ajust.jpg\" alt=\"tutoriel siril 1.4\" class=\"wp-image-22501\" srcset=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/auto-ajust.jpg 200w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/auto-ajust-150x150.jpg 150w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/auto-ajust-80x80.jpg 80w\" sizes=\"auto, (max-width: 200px) 100vw, 200px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p><strong>Passer l&rsquo;auto ajustement en HD :<\/strong><\/p>\n\n\n\n<p>Tout en bas de SiriL, ouvrez le menu en cliquant sur \u00ab\u00a0Lin\u00e9aire\u00a0\u00bb.<\/p>\n\n\n\n<p>Sous \u00ab\u00a0auto ajustement\u00a0\u00bb veillez \u00e0 cocher la case \u00ab\u00a0Haute d\u00e9finition\u00a0\u00bb.<\/p>\n\n\n\n<p>Vous pouvez rester sur l&rsquo;option \u00ab\u00a0Lin\u00e9aire\u00a0\u00bb pour le moment, nous y reviendrons plus tard.<\/p>\n\n\n\n<div class=\"wp-block-columns is-not-stacked-on-mobile is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n<\/div>\n\n\n\n<p><strong>Cr\u00e9ation du dossier de travail :<\/strong><\/p>\n\n\n\n<p>Cr\u00e9er un dossier de travail dans votre dossier Images par exemple.<\/p>\n\n\n\n<p>Ce dossier de travail contiendra toutes vos images issues du traitement SiriL.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignright size-full\"><a href=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/dossiers.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"200\" height=\"162\" src=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/dossiers.jpg\" alt=\"\" class=\"wp-image-22503\"\/><\/a><\/figure>\n<\/div>\n\n\n<p>Dans ce dossier Images, cr\u00e9er les 4 sous-dossiers :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>darks,<\/li>\n\n\n\n<li>flats,<\/li>\n\n\n\n<li>biases,<\/li>\n\n\n\n<li>lights.<\/li>\n<\/ul>\n\n\n\n<p><strong>D\u00e9fibitions :<\/strong><\/p>\n\n\n\n<p><strong><span style=\"text-decoration: underline;\">Lights<\/span><\/strong>&nbsp;: s\u00e9rie de prises de vues originale de la cible.<br><strong><span style=\"text-decoration: underline;\">Darks<\/span><\/strong> : identiques aux lights (ISO, vitesse, focale et temp\u00e9rature) mais avec le bouchon d&rsquo;objectif.<br><strong><span style=\"text-decoration: underline;\">Biases<\/span>&nbsp;<\/strong>: identiques aux darks mais \u00e0 la vitesse la plus \u00e9lev\u00e9e possible de votre APN.<br><strong><span style=\"text-decoration: underline;\">Flats<\/span>&nbsp;<\/strong>: photographies d&rsquo;un \u00e9cran blanc.<\/p>\n\n\n\n<div class=\"wp-block-columns is-not-stacked-on-mobile is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n<\/div>\n\n\n\n<p>Le dossier Images (ou Mes Images selon la version de Windows) est normalement accessible directement dans l&rsquo;explorateur Windows.<\/p>\n\n\n\n<p>Ce dossier correspond \u00e0 votre dossier Users\/VotreNom\/Pictures.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignright size-full\"><a href=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/home-siril.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"72\" height=\"70\" src=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/home-siril.jpg\" alt=\"\" class=\"wp-image-22509\"\/><\/a><\/figure>\n<\/div>\n\n\n<p>Si vous souhaitez changer l&#8217;emplacement du dossier de travail :<\/p>\n\n\n\n<p>Dans SiriL, cliquez sur le bouton \u00ab\u00a0home\u00a0\u00bb en haut \u00e0 gauche et allez chercher le nouveau dossier.<br>N&rsquo;oubliez pas de d\u00e9placer \u00e9galement les dossiers darks, flats, biases et lights dans ce nouveau dossier.<\/p>\n\n\n\n<div class=\"wp-block-columns is-not-stacked-on-mobile is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n<\/div>\n\n\n\n<p>En partant du principe que si vous consultez ce tutoriel Siril 1.4 c&rsquo;est que vous avez d\u00e9j\u00e0 effectu\u00e9 vos photos. Il va donc falloir maintenant r\u00e9partir vos diff\u00e9rentes images brutes dans les bons dossiers.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Copier les fichiers RAW de vos darks dans le dossier dark,<\/li>\n\n\n\n<li>Copier les fichiers RAW de vos flats dans le dossier flats,<\/li>\n\n\n\n<li>Copier les fichiers RAW de vos offsets dans le dossier biases,<\/li>\n\n\n\n<li>Copier les fichiers RAW de vos images brutes dans le dossier lights.<\/li>\n<\/ul>\n\n\n\n<p>Re-lancer SiriL.<\/p>\n\n\n\n<div class=\"wp-block-columns is-not-stacked-on-mobile is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\" id=\"pretraitement\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading has-medium-font-size\"><strong>3. <span style=\"text-decoration: underline;\">Pr\u00e9-traitement<\/span><\/strong> :<\/h2>\n\n\n\n<p>Cliquez sur le menu Scripts et choisissez le script \u00e0 lancer. Pour des photos couleurs avec Darks, Biases et Flat, choisissez \u00ab\u00a0OSC_preprocessing.ssf\u00a0\u00bb.<\/p>\n\n\n\n<p>Le script poss\u00e9dant l&rsquo;option Drizzle, \u00ab\u00a0OSC_preprocessing_BayerDrizzle.ssf\u00a0\u00bb, permet d&rsquo;agrandir l&rsquo;image d&rsquo;un facteur 2 et ainsi obtenir une meilleure r\u00e9solution sur votre image finale.<\/p>\n\n\n\n<p>Le temps de traitement avec l&rsquo;option drizzle est cependant doubl\u00e9 dans SiriL.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/pretraitement.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"242\" src=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/pretraitement.jpg\" alt=\"tutoriel siril 1.4\" class=\"wp-image-22513\" srcset=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/pretraitement.jpg 500w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/pretraitement-300x145.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p><\/p>\n\n\n\n<p>Le script automatique se lance et pr\u00e9-traitera automatiquement vos images.<\/p>\n\n\n\n<p>Pour exemple, le temps de traitement de 50 images A7S avec retrait des darks, flats et offsets est de 5 minutes environ, 10 minutes avec l&rsquo;option drizzle coch\u00e9e (sur un PC de moyenne puissance i7 + 16Go de RAM).<\/p>\n\n\n\n<p>L&rsquo;image Resultat.fit sera enregistr\u00e9e dans votre dossier Images que vous pouvez ouvrir \u00e0 nouveau pour y appliquer la suite des traitements.<\/p>\n\n\n\n<div class=\"wp-block-columns is-not-stacked-on-mobile is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\" id=\"traitement\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading has-medium-font-size\"><strong>4. <span style=\"text-decoration: underline;\">Traitement et Scripts Python<\/span> :<\/strong><\/h2>\n\n\n\n<p id=\"crop\">Il existe mille et une fa\u00e7ons de traiter la m\u00eame image. Il n\u2019existe ainsi pas de tutoriel parfait \u00e0 suivre \u00e0 la lettre<br>L\u2019objectif est donc de bien comprendre le fonctionnement de chaque algorithme pour l\u2019utiliser dans les conditions les plus appropri\u00e9es.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignright size-full\"><a href=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/auto-ajust.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"200\" height=\"198\" src=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/auto-ajust.jpg\" alt=\"tutoriel siril 1.4\" class=\"wp-image-22501\" srcset=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/auto-ajust.jpg 200w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/auto-ajust-150x150.jpg 150w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/auto-ajust-80x80.jpg 80w\" sizes=\"auto, (max-width: 200px) 100vw, 200px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p><strong>Red\u00e9coupage de l&rsquo;image (crop) :<\/strong><\/p>\n\n\n\n<p>S\u00e9lectionner Auto ajustement dans le menu au milieu et en bas de la fen\u00eatre Siril. Tracer une zone dans l&rsquo;image puis Clic-droit dans la zone et s\u00e9lectionner \u00ab&nbsp;Recadrer&nbsp;\u00bb.<\/p>\n\n\n\n<p>Cette action importante, car si on conserve les bords noirs et\/ou trop bruit\u00e9s, certains traitements ne se feront pas correctement.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/crop.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"630\" height=\"476\" src=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/crop.jpg\" alt=\"\" class=\"wp-image-22515\" srcset=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/crop.jpg 630w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/crop-300x227.jpg 300w\" sizes=\"auto, (max-width: 630px) 100vw, 630px\" \/><\/a><\/figure>\n<\/div>\n\n\n<div class=\"wp-block-columns is-not-stacked-on-mobile is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\" id=\"extraction\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n<\/div>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignright size-large is-resized\"><a href=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/veralux-nox.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"584\" height=\"1024\" src=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/veralux-nox-584x1024.jpg\" alt=\"tutoriel siril 1.4\" class=\"wp-image-22517\" style=\"width:240px\" srcset=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/veralux-nox-584x1024.jpg 584w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/veralux-nox-171x300.jpg 171w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/veralux-nox-768x1347.jpg 768w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/veralux-nox.jpg 800w\" sizes=\"auto, (max-width: 584px) 100vw, 584px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p><strong>Extraction du gradient :<\/strong> (M\u00e9thode 1)<\/p>\n\n\n\n<p>Dans le Menu Scripts =&gt; Scripts Python =&gt; VeraLux =&gt; VeraLux_Nox.py<\/p>\n\n\n\n<p>Si il s&rsquo;agit de la premi\u00e8re utilisation du script, Siril va prendre un peu de temps pour t\u00e9l\u00e9charger quelques fichiers avant d&rsquo;ouvrir la fen\u00eatre de param\u00e9trage du script.<\/p>\n\n\n\n<p>Cliquer sur&nbsp;: \u00ab\u00a0AUTO-CALCULATE\u00a0\u00bb<\/p>\n\n\n\n<p>Cliquer sur&nbsp;: \u00ab\u00a0PROCESS\u00a0\u00bb<\/p>\n\n\n\n<p>On peut aussi sauvegarder le mod\u00e8le du gradient et le voir dans la partie \u00ab\u00a03. Output\u00a0\u00bb.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>Extraction de gradient :<\/strong> (M\u00e9thode 2)<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignright size-full is-resized\"><a href=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/AutoBGE-1.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"486\" src=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/AutoBGE-1.jpg\" alt=\"\" class=\"wp-image-22521\" style=\"width:240px\" srcset=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/AutoBGE-1.jpg 500w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/AutoBGE-1-300x292.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p>Dans le Menu : Scripts =&gt; Scripts Python =&gt; Processing =&gt; AutoBGE<\/p>\n\n\n\n<p>Comme pour le script pr\u00e9c\u00e9dent, si c&rsquo;est la premi\u00e8re utilisation Siril aura besoin de downloader quelques fichiers.<\/p>\n\n\n\n<p>Garder les r\u00e9glages d&rsquo;origine et cliquer sur \u00ab\u00a0Process\u00a0\u00bb.<\/p>\n\n\n\n<p>Essayer les deux m\u00e9thodes, comparer\u2026 Garder celle qui donne le meilleur r\u00e9sultat.<\/p>\n\n\n\n<div class=\"wp-block-columns is-not-stacked-on-mobile is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\" id=\"balance\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n<\/div>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignright size-full is-resized\"><a href=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/balance-blancs.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"630\" src=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/balance-blancs.jpg\" alt=\"tutoriel siril 1.4\" class=\"wp-image-22526\" style=\"width:240px\" srcset=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/balance-blancs.jpg 500w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/balance-blancs-238x300.jpg 238w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p><strong>Balance des blancs :<\/strong><\/p>\n\n\n\n<p>Dans le menu&nbsp;: Outils =&gt; Astrom\u00e9trie =&gt; R\u00e9solution Astrom\u00e9trique<\/p>\n\n\n\n<p>Indiquer le nom de l&rsquo;objet, Ici&nbsp;: IC405<\/p>\n\n\n\n<p>Cliquer sur \u00ab\u00a0Rechercher\u00a0\u00bb.<\/p>\n\n\n\n<p>Cliquer sur \u00ab\u00a0OK\u00a0\u00bb.<\/p>\n\n\n\n<p>On obtient une balance des blancs et le retournement de l&rsquo;image si n\u00e9cessaire.<\/p>\n\n\n\n<p>Si la r\u00e9solution astrom\u00e9trique ne fonctionne pas et indique qu&rsquo;il n&rsquo;y a pas assez d&rsquo;\u00e9toiles. V\u00e9rifiez que la longueur focale indiqu\u00e9e est la bonne.<\/p>\n\n\n\n<p>Et si vous avez fait l&rsquo;extraction du gradient avec Nox (m\u00e9thode #1), reprenez au d\u00e9but et faites l&rsquo;extraction du gradient avec AutoBGE (m\u00e9thode #2).<\/p>\n\n\n\n<div class=\"wp-block-columns is-not-stacked-on-mobile is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\" id=\"couleurs\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n<\/div>\n\n\n\n<p><strong>\u00c9talonnage des couleurs par spectrophotom\u00e9trie<\/strong> :<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignright size-large is-resized\"><a href=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/spectro.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"807\" src=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/spectro-1024x807.jpg\" alt=\"tutoriel siril 1.4\" class=\"wp-image-22527\" style=\"width:240px\" srcset=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/spectro-1024x807.jpg 1024w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/spectro-300x237.jpg 300w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/spectro-768x606.jpg 768w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/spectro.jpg 1045w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p>Dans le menu Traitement de l&rsquo;image =&gt; Etalonnage des couleurs =&gt; Etalonnage des couleurs par spectrophotom\u00e9trie<\/p>\n\n\n\n<p>Choisir le mod\u00e8le de votre capteur couleur, ici&nbsp;: IMX533<\/p>\n\n\n\n<p>Choisir le filtre, ici&nbsp;: Optolong L-Pro<\/p>\n\n\n\n<p>Cliquer sur \u00ab\u00a0OK\u00a0\u00bb<\/p>\n\n\n\n<p>A noter que l&rsquo;option SeeStar est possible en spectrophotom\u00e9trie.<\/p>\n\n\n\n<p>Si vous connaissez les param\u00e8tres atmosph\u00e9riques au moment des prises de vues vous pouvez les renseigner en cliquant sur \u00ab\u00a0Corrections atmosph\u00e9riques\u00a0\u00bb.<\/p>\n\n\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-not-stacked-on-mobile is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\" id=\"aberrations\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n<\/div>\n\n\n\n<p><strong>R\u00e9duction des aberrations :<\/strong><\/p>\n\n\n\n<p>Dans le menu Scripts =&gt; Scripts Python =&gt; Processing =&gt; AbberrationRemover.py<\/p>\n\n\n\n<p>Ce script a besoin d&rsquo;un mod\u00e8le pour fonctionner, vous pouvez le trouver ici, <a href=\"https:\/\/github.com\/riccardoalberghi\/abberation_models\/releases\/download\/2.0.1\/model_v2_0_1.onnx\"><strong>model_v2_0_1.onnx<\/strong><\/a><\/p>\n\n\n\n<p>Faites un avant-apr\u00e8s pour constater la forme de vos \u00e9toiles.<\/p>\n\n\n\n<p>Miraculeux&nbsp;!<\/p>\n\n\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-not-stacked-on-mobile is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\" id=\"bruit\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n<\/div>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignright size-full is-resized\"><a href=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/reduction-bruit.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"456\" height=\"631\" src=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/reduction-bruit.jpg\" alt=\"\" class=\"wp-image-22531\" style=\"width:240px\" srcset=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/reduction-bruit.jpg 456w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/reduction-bruit-217x300.jpg 217w\" sizes=\"auto, (max-width: 456px) 100vw, 456px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p><strong>R\u00e9duction du bruit :<\/strong><\/p>\n\n\n\n<p>Dans le menu Scripts =&gt; Scripts Python =&gt; Processing =&gt; SyQon-Prism.py<\/p>\n\n\n\n<p>NB&nbsp;pour plus tard : la StarLess est juste en dessous.<\/p>\n\n\n\n<p>Cocher \u00ab\u00a0Enable Mixed Precision\u00a0\u00bb.<\/p>\n\n\n\n<p>Si vous n&rsquo;avez pas de GPU Nvidia, ou si PRISM refuse de se lancer, cocher Disable GPU (ce sera un peu plus long, mais le r\u00e9sultat sera identique).<\/p>\n\n\n\n<p>Cliquer \u00ab\u00a0Process Image\u00a0\u00bb.<\/p>\n\n\n\n<p>Nouveau miracle&nbsp;!<\/p>\n\n\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-not-stacked-on-mobile is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\" id=\"starless\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n<\/div>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignright size-full is-resized\"><a href=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/starless.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"400\" height=\"649\" src=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/starless.jpg\" alt=\"tutoriel siril 1.4\" class=\"wp-image-22532\" style=\"width:240px\" srcset=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/starless.jpg 400w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/starless-185x300.jpg 185w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p><strong>StarLess :<\/strong><\/p>\n\n\n\n<p>Dans le menu Scripts =&gt; Scripts Python =&gt; Processing =&gt; SyQon-StarLess.py<\/p>\n\n\n\n<p>Encore une fois il y aura un petit temps d&rsquo;attente lors de la premi\u00e8re utilisation.<\/p>\n\n\n\n<p>Cocher \u00ab\u00a0Enable Mixed Precision\u00a0\u00bb.<\/p>\n\n\n\n<p>Cocher \u00ab\u00a0Disable GPU\u00a0\u00bb si besoin (comme pr\u00e9c\u00e9demment).<\/p>\n\n\n\n<p>Cocher \u00ab\u00a0Generate Star Mask\u00a0\u00bb.<\/p>\n\n\n\n<p>Si vous avez de grosses \u00e9toiles, augmenter la \u00ab\u00a0Tile Size\u00a0\u00bb.<\/p>\n\n\n\n<p>Cliquer sur \u00ab\u00a0Process Image\u00a0\u00bb.<\/p>\n\n\n\n<p>Vous retrouvez votre image priv\u00e9e de ses \u00e9toiles, mais pas de panique, une autre image avec les \u00e9toiles a \u00e9t\u00e9 g\u00e9n\u00e9r\u00e9e et sauvegard\u00e9e (Generate Star Mask) dans votre dossier de travail.<\/p>\n\n\n\n<p>Nous allons maintenant travailler que sur l&rsquo;objet et non sur les \u00e9toiles. Nous recomposerons l&rsquo;image compl\u00e8te (objet + \u00e9toiles) par la suite.<\/p>\n\n\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-not-stacked-on-mobile is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\" id=\"histogramme\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n<\/div>\n\n\n\n<p><strong>\u00c9tirement de l&rsquo;histogramme :<\/strong><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignright size-full is-resized\"><a href=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/histogramme.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"508\" src=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/histogramme.jpg\" alt=\"\" class=\"wp-image-22536\" style=\"width:240px\" srcset=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/histogramme.jpg 600w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/histogramme-300x254.jpg 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p>Tout d&rsquo;abord il faudra revenir en mode lin\u00e9aire dans le menu en bas de la fen\u00eatre principale.<\/p>\n\n\n\n<p>Dans le Menu Scripts =&gt; Scripts Python =&gt; VeraLux =&gt; VeraLux_HyperMetric_Stretch.py<\/p>\n\n\n\n<p>Choisir son capteur&nbsp;: \u00ab\u00a0Sensor Profile\u00a0\u00bb.<\/p>\n\n\n\n<p>Cliquer sur&nbsp;: \u00ab\u00a0Live Preview\u00a0\u00bb.<\/p>\n\n\n\n<p>Cliquer sur&nbsp;: \u00ab\u00a0Auto-Calc Log D\u00a0\u00bb.<\/p>\n\n\n\n<p>Ajuster \u00ab\u00a0Target Bg\u00a0\u00bb pour r\u00e9gler le fond du ciel.<\/p>\n\n\n\n<p>Cliquer sur \u00ab\u00a0Process\u00a0\u00bb.<\/p>\n\n\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-not-stacked-on-mobile is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\" id=\"courbes\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n<\/div>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignright size-large is-resized\"><a href=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/courbes.png\"><img loading=\"lazy\" decoding=\"async\" width=\"550\" height=\"1024\" src=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/courbes-550x1024.png\" alt=\"tutoriel siril 1.4\" class=\"wp-image-22538\" style=\"width:241px\" srcset=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/courbes-550x1024.png 550w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/courbes-161x300.png 161w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/courbes.png 600w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p><strong>Courbes :<\/strong><\/p>\n\n\n\n<p>Dans le Menu Scripts =&gt; Scripts Python =&gt; VeraLux =&gt; VeraLux_Curves.py<\/p>\n\n\n\n<p>Cocher \u00ab\u00a0Enable Range Limited\u00a0\u00bb.<\/p>\n\n\n\n<p>Cocher \u00ab\u00a0Show Mask\u00a0\u00bb.<\/p>\n\n\n\n<p>Placer les points sur la courbe.<\/p>\n\n\n\n<p>Jouer avec les curseurs.<\/p>\n\n\n\n<p>Cliquer sur \u00ab\u00a0Process\u00a0\u00bb.<\/p>\n\n\n\n<p>Il est vrai que pour les non initi\u00e9s, cette \u00e9tape n&rsquo;est pas si simple. Vous pouvez dans un premier temps placer deux points comme sur l&rsquo;image \u00e0 droite et de voir ce qu&rsquo;il se passe en les faisant monter et descendre le long des lignes pointill\u00e9es orange.<\/p>\n\n\n\n<p>Vous pourrez revenir \u00e0 l&rsquo;\u00e9tat initial en cliquant sur le bouton \u00ab\u00a0Reset All\u00a0\u00bb.<\/p>\n\n\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-not-stacked-on-mobile is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\" id=\"details\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n<\/div>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignright size-full is-resized\"><a href=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/revela.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"730\" src=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/revela.jpg\" alt=\"tutoriel siril 1.4\" class=\"wp-image-22546\" style=\"width:240px\" srcset=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/revela.jpg 500w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/revela-205x300.jpg 205w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p><strong>Augmenter les d\u00e9tails :<\/strong><\/p>\n\n\n\n<p>Dans le Menu Scripts =&gt; Scripts Python =&gt; VeraLux =&gt; VeraLux_Revela.py<\/p>\n\n\n\n<p>Ajuster les deux curseurs en haut \u00e0 votre convenance.<\/p>\n\n\n\n<p>Le but de la man\u0153uvre est de donner un peu de texture aux n\u00e9buleuses ou galaxies.<\/p>\n\n\n\n<p>Attention n\u00e9anmoins \u00e0 ne pas aller trop loin et d\u00e9naturer le rendu de votre photographie.<\/p>\n\n\n\n<p>A utiliser donc avec mod\u00e9ration.<\/p>\n\n\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-not-stacked-on-mobile is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\" id=\"saturation\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n<\/div>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignright size-full is-resized\"><a href=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/vectra.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"938\" src=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/vectra.jpg\" alt=\"tutoriel siril 1.4\" class=\"wp-image-22547\" style=\"width:240px\" srcset=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/vectra.jpg 600w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/vectra-192x300.jpg 192w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p><strong>Saturation des couleurs :<\/strong><\/p>\n\n\n\n<p>Dans le Menu Scripts =&gt; Scripts Python =&gt; VeraLux =&gt; VeraLux_Vectra.py<\/p>\n\n\n\n<p>Cocher \u00ab\u00a0Show Vector Scope\u00a0\u00bb pour faire appara\u00eetre le camembert.<\/p>\n\n\n\n<p>Vous pourrez alors augmenter ou diminuer la saturation des couleurs primaires (RVB) et secondaires (YUV).<\/p>\n\n\n\n<p>Jouer avec les curseurs (vectors) afin d&rsquo;obtenir le r\u00e9sultat voulu.<\/p>\n\n\n\n<p>Une fois satisfait, cliquez sur le bouton \u00ab\u00a0Process\u00a0\u00bb.<\/p>\n\n\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-not-stacked-on-mobile is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\" id=\"bruitvert\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n<\/div>\n\n\n\n<p><strong>Suppression du bruit vert :<\/strong><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignright size-full is-resized\"><a href=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/scnr.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"314\" src=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/scnr.jpg\" alt=\"\" class=\"wp-image-22548\" style=\"width:240px\" srcset=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/scnr.jpg 600w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/scnr-300x157.jpg 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p>Dans le menu Traitement de l&rsquo;image =&gt; Suppression du bruit vert (SCNR)<\/p>\n\n\n\n<p>Choisissez la m\u00e9thode de protection \u00ab\u00a0Neutre Moyen\u00a0\u00bb.<\/p>\n\n\n\n<p>Cliquez sur \u00ab\u00a0Pr\u00e9serve la luminosit\u00e9\u00a0\u00bb.<\/p>\n\n\n\n<p>Puis cliquer sur \u00ab\u00a0Appliquer\u00a0\u00bb.<\/p>\n\n\n\n<p>Enregistrez l&rsquo;image en cliquant sur le bouton \u00ab\u00a0enregistrer\u00a0\u00bb en haut \u00e0 droite.<\/p>\n\n\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-not-stacked-on-mobile is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\" id=\"etoiles\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n<\/div>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignright size-large is-resized\"><a href=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/starcomposer.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"561\" height=\"1024\" src=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/starcomposer-561x1024.jpg\" alt=\"tutoriel siril 1.4\" class=\"wp-image-22549\" style=\"width:240px\" srcset=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/starcomposer-561x1024.jpg 561w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/starcomposer-164x300.jpg 164w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/starcomposer.jpg 600w\" sizes=\"auto, (max-width: 561px) 100vw, 561px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p><strong>R\u00e9cup\u00e9ration des \u00e9toiles :<\/strong><\/p>\n\n\n\n<p>Dans le Menu Scripts =&gt; Scripts Python =&gt; VeraLux =&gt; VeraLux_StarComposer.py<\/p>\n\n\n\n<p>Charger votre Starmask (1. Load Starmask).<\/p>\n\n\n\n<p>Parce que vous avez, bien s\u00fbr, coch\u00e9 sur \u00ab\u00a0Generate Star Mask\u00a0\u00bb dans SyQon StarLess.<\/p>\n\n\n\n<p>Charger votre StarLess (2. Load Starless).<\/p>\n\n\n\n<p>Jouer avec le curseur Star Intensity pour r\u00e9duire ou augmenter le nombre et la taille des \u00e9toiles.<\/p>\n\n\n\n<p>Cliquez ensuite sur \u00ab\u00a0Process\u00a0\u00bb.<\/p>\n\n\n\n<p>Nous pouvons \u00e0 pr\u00e9sent sauvegarder l&rsquo;image finale.<\/p>\n\n\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-not-stacked-on-mobile is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\" id=\"sauvegarde\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n<\/div>\n\n\n\n<p><strong>Sauvegarde :<\/strong><\/p>\n\n\n\n<div class=\"wp-block-columns is-not-stacked-on-mobile is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-bottom is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:85%\">\n<p>Cliquez sur ce bouton, en haut \u00e0 droite des la fen\u00eatre principale de Siril.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-top is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:15%\"><div class=\"wp-block-image\">\n<figure class=\"alignleft size-full is-resized\"><a href=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/enregistrer.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"36\" height=\"35\" src=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/enregistrer.jpg\" alt=\"\" class=\"wp-image-22550\" style=\"aspect-ratio:1.0285841893702545;width:36px;height:auto\"\/><\/a><\/figure>\n<\/div><\/div>\n<\/div>\n\n\n\n<p>Dans la fen\u00eatre qui va s&rsquo;ouvrir il vous faudra choisir le nom de votre fichier en haut \u00e0 gauche. Ici j&rsquo;ai opt\u00e9 pour \u00ab\u00a0image_finale_Mxx\u00a0\u00bb.<\/p>\n\n\n\n<p>Le r\u00e9pertoire o\u00f9 enregistrer le fichier, \u00e0 l&rsquo;aide de l&rsquo;explorateur juste en dessous. Et pour finir le format de l&rsquo;image \u00e0 sauvegarder (.jpg, .bmp, .png \u2026) en bas \u00e0 droite. puis cliquez sur le bouton \u00ab\u00a0Enregistrer\u00a0\u00bb.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/sauvegarde-1.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"630\" height=\"465\" src=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/sauvegarde-1.jpg\" alt=\"\" class=\"wp-image-22564\" srcset=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/sauvegarde-1.jpg 630w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/03\/sauvegarde-1-300x221.jpg 300w\" sizes=\"auto, (max-width: 630px) 100vw, 630px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p>Pr\u00e9f\u00e9rez les formats TIF ou en FIT (ce dernier est g\u00e9r\u00e9 par Photoshop et la plupart des logiciels de traitement d&rsquo;images) afin de garder une qualit\u00e9 optimale mais bien entendu avec un poids relativement cons\u00e9quent.<\/p>\n\n\n\n<p>Dans tous les cas prenez soin de choisir \u00ab\u00a016 bit\u00a0\u00bb lorsque le choix vous est propos\u00e9.<\/p>\n\n\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-not-stacked-on-mobile is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n<\/div>\n\n\n\n<p><strong>Documentation :<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Le site\u00a0: <a href=\"https:\/\/siril.org\/\"><strong>https:\/\/siril.org\/<\/strong><\/a><\/li>\n\n\n\n<li>Les cours en ligne\u00a0: <strong><a href=\"https:\/\/siril.org\/fr\/tutorials\/\">https:\/\/siril.org\/fr\/tutorials\/<\/a><\/strong><\/li>\n\n\n\n<li>La FAQ : <strong><a href=\"https:\/\/siril.org\/fr\/faq\/\">https:\/\/siril.org\/fr\/faq\/<\/a><\/strong><\/li>\n\n\n\n<li>Pr\u00e9sentation de SiriL aux RCE\u00a0: <strong><a href=\"https:\/\/siril.org\/fr\/2024\/11\/siril-aux-rce-2024\/\">https:\/\/siril.org\/fr\/2024\/11\/siril-aux-rce-2024\/<\/a><\/strong><\/li>\n\n\n\n<li>Le tutoriel de Colmic&nbsp;: <strong><a href=\"https:\/\/www.webastro.net\/forums\/topic\/166799-tutorial-pour-le-traitement-complet-dune-image-apn-avec-les-scripts-siril-et-photoshop\/\">https:\/\/www.webastro.net\/forums\/topic\/166799-tutorial-pour-le-traitement-complet-dune-image-apn-avec-les-scripts-siril-et-photoshop\/<\/a><\/strong><\/li>\n\n\n\n<li>Retrouvez aussi SiriL dans Astrosurf magazine :<br>&#8211; Num\u00e9ro 86 (utilisation g\u00e9n\u00e9rale)<br>&#8211; Num\u00e9ro 90 (traitement des exoplan\u00e8tes)<br>&#8211; Num\u00e9ro 91 (ciel profond rapide)<br>&#8211; Num\u00e9ro 100 (\u00e9talonnage des couleurs par photom\u00e9trie)<\/li>\n<\/ul>\n\n\n\n<p><strong>Remerciements :<\/strong><\/p>\n\n\n\n<p>Cette pr\u00e9sentation a \u00e9t\u00e9 r\u00e9alis\u00e9e gr\u00e2ce aux conseils fournis par :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Cyril Richard (lock042),<\/li>\n\n\n\n<li>Michel Collard (colmic).<\/li>\n<\/ul>\n\n\n\n<p>Et surtout gr\u00e2ce \u00e0 mon ami :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>St\u00e9phane Losacco (SLO).<\/li>\n<\/ul>\n<div class=\"pvc_clear\"><\/div><p id=\"pvc_stats_22453\" class=\"pvc_stats all  \" data-element-id=\"22453\" style=\"\"><i class=\"pvc-stats-icon medium\" aria-hidden=\"true\"><svg aria-hidden=\"true\" focusable=\"false\" data-prefix=\"far\" data-icon=\"chart-bar\" role=\"img\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 512 512\" class=\"svg-inline--fa fa-chart-bar fa-w-16 fa-2x\"><path fill=\"currentColor\" d=\"M396.8 352h22.4c6.4 0 12.8-6.4 12.8-12.8V108.8c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v230.4c0 6.4 6.4 12.8 12.8 12.8zm-192 0h22.4c6.4 0 12.8-6.4 12.8-12.8V140.8c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v198.4c0 6.4 6.4 12.8 12.8 12.8zm96 0h22.4c6.4 0 12.8-6.4 12.8-12.8V204.8c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v134.4c0 6.4 6.4 12.8 12.8 12.8zM496 400H48V80c0-8.84-7.16-16-16-16H16C7.16 64 0 71.16 0 80v336c0 17.67 14.33 32 32 32h464c8.84 0 16-7.16 16-16v-16c0-8.84-7.16-16-16-16zm-387.2-48h22.4c6.4 0 12.8-6.4 12.8-12.8v-70.4c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v70.4c0 6.4 6.4 12.8 12.8 12.8z\" class=\"\"><\/path><\/svg><\/i> <img loading=\"lazy\" decoding=\"async\" width=\"16\" height=\"16\" alt=\"Loading\" src=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/plugins\/page-views-count\/ajax-loader-2x.gif\" border=0 \/><\/p><div class=\"pvc_clear\"><\/div>","protected":false},"excerpt":{"rendered":"<p>Ci-dessous un tutoriel Siril 1.4 (et sup\u00e9rieur, version actuelle Siril 1.4.2). Depuis sa cr\u00e9ation, ce logiciel n&rsquo;a cess\u00e9 d&rsquo;\u00e9voluer pour satisfaire&#46;&#46;&#46;<\/p>\n<div class=\"pvc_clear\"><\/div>\n<p id=\"pvc_stats_22453\" class=\"pvc_stats all  \" data-element-id=\"22453\" style=\"\"><i class=\"pvc-stats-icon medium\" aria-hidden=\"true\"><svg aria-hidden=\"true\" focusable=\"false\" data-prefix=\"far\" data-icon=\"chart-bar\" role=\"img\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 512 512\" class=\"svg-inline--fa fa-chart-bar fa-w-16 fa-2x\"><path fill=\"currentColor\" d=\"M396.8 352h22.4c6.4 0 12.8-6.4 12.8-12.8V108.8c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v230.4c0 6.4 6.4 12.8 12.8 12.8zm-192 0h22.4c6.4 0 12.8-6.4 12.8-12.8V140.8c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v198.4c0 6.4 6.4 12.8 12.8 12.8zm96 0h22.4c6.4 0 12.8-6.4 12.8-12.8V204.8c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v134.4c0 6.4 6.4 12.8 12.8 12.8zM496 400H48V80c0-8.84-7.16-16-16-16H16C7.16 64 0 71.16 0 80v336c0 17.67 14.33 32 32 32h464c8.84 0 16-7.16 16-16v-16c0-8.84-7.16-16-16-16zm-387.2-48h22.4c6.4 0 12.8-6.4 12.8-12.8v-70.4c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v70.4c0 6.4 6.4 12.8 12.8 12.8z\" class=\"\"><\/path><\/svg><\/i> <img loading=\"lazy\" decoding=\"async\" width=\"16\" height=\"16\" alt=\"Loading\" src=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/plugins\/page-views-count\/ajax-loader-2x.gif\" border=0 \/><\/p>\n<div class=\"pvc_clear\"><\/div>\n","protected":false},"author":11,"featured_media":15007,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[98,116,49],"tags":[],"class_list":["post-22453","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-logiciel","category-outils","category-informations-a-destination-des-enseignants-et-des-animateurs"],"yoast_head":"<title>Tutoriel Siril 1.4 - Rep\u00e8res Astro<\/title>\n<meta name=\"description\" content=\"Un tutoriel Siril 1.4 Depuis sa cr\u00e9ation, ce logiciel n&#039;a cess\u00e9 d&#039;\u00e9voluer pour satisfaire ses utilisateurs passionn\u00e9s d&#039;astrophotographies.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/reperes-astro.fr\/tutoriel-siril-1-4\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Tutoriel Siril 1.4 - Rep\u00e8res Astro\" \/>\n<meta property=\"og:description\" content=\"Un tutoriel Siril 1.4 Depuis sa cr\u00e9ation, ce logiciel n&#039;a cess\u00e9 d&#039;\u00e9voluer pour satisfaire ses utilisateurs passionn\u00e9s d&#039;astrophotographies.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/reperes-astro.fr\/tutoriel-siril-1-4\/\" \/>\n<meta property=\"og:site_name\" content=\"Rep\u00e8res Astro\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/AssoReperesAstro\/?locale=fr_FRrplanetarium\" \/>\n<meta property=\"article:published_time\" content=\"2026-03-13T16:18:24+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-03-14T11:25:06+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2024\/11\/free_astro.siril_-e1731327990141.png\" \/>\n\t<meta property=\"og:image:width\" content=\"532\" \/>\n\t<meta property=\"og:image:height\" content=\"215\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Franck\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Franck\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"11 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/reperes-astro.fr\\\/tutoriel-siril-1-4\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/reperes-astro.fr\\\/tutoriel-siril-1-4\\\/\"},\"author\":{\"name\":\"Franck\",\"@id\":\"https:\\\/\\\/reperes-astro.fr\\\/#\\\/schema\\\/person\\\/14ae1ee92a60868e90f005146ca2f8d8\"},\"headline\":\"Tutoriel Siril 1.4\",\"datePublished\":\"2026-03-13T16:18:24+00:00\",\"dateModified\":\"2026-03-14T11:25:06+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/reperes-astro.fr\\\/tutoriel-siril-1-4\\\/\"},\"wordCount\":2292,\"publisher\":{\"@id\":\"https:\\\/\\\/reperes-astro.fr\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/reperes-astro.fr\\\/tutoriel-siril-1-4\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/reperes-astro.fr\\\/%77%70%2d%63%6f%6e%74%65%6e%74\\\/uploads\\\/2024\\\/11\\\/free_astro.siril_-e1731327990141.png\",\"articleSection\":[\"Logiciel\",\"Outils\",\"Publications\"],\"inLanguage\":\"fr-FR\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/reperes-astro.fr\\\/tutoriel-siril-1-4\\\/\",\"url\":\"https:\\\/\\\/reperes-astro.fr\\\/tutoriel-siril-1-4\\\/\",\"name\":\"Tutoriel Siril 1.4 - Rep\u00e8res Astro\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/reperes-astro.fr\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/reperes-astro.fr\\\/tutoriel-siril-1-4\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/reperes-astro.fr\\\/tutoriel-siril-1-4\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/reperes-astro.fr\\\/%77%70%2d%63%6f%6e%74%65%6e%74\\\/uploads\\\/2024\\\/11\\\/free_astro.siril_-e1731327990141.png\",\"datePublished\":\"2026-03-13T16:18:24+00:00\",\"dateModified\":\"2026-03-14T11:25:06+00:00\",\"description\":\"Un tutoriel Siril 1.4 Depuis sa cr\u00e9ation, ce logiciel n'a cess\u00e9 d'\u00e9voluer pour satisfaire ses utilisateurs passionn\u00e9s d'astrophotographies.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/reperes-astro.fr\\\/tutoriel-siril-1-4\\\/#breadcrumb\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/reperes-astro.fr\\\/tutoriel-siril-1-4\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\\\/\\\/reperes-astro.fr\\\/tutoriel-siril-1-4\\\/#primaryimage\",\"url\":\"https:\\\/\\\/reperes-astro.fr\\\/%77%70%2d%63%6f%6e%74%65%6e%74\\\/uploads\\\/2024\\\/11\\\/free_astro.siril_-e1731327990141.png\",\"contentUrl\":\"https:\\\/\\\/reperes-astro.fr\\\/%77%70%2d%63%6f%6e%74%65%6e%74\\\/uploads\\\/2024\\\/11\\\/free_astro.siril_-e1731327990141.png\",\"width\":532,\"height\":215},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/reperes-astro.fr\\\/tutoriel-siril-1-4\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Accueil\",\"item\":\"https:\\\/\\\/reperes-astro.fr\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Tutoriel Siril 1.4\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/reperes-astro.fr\\\/#website\",\"url\":\"https:\\\/\\\/reperes-astro.fr\\\/\",\"name\":\"Rep\u00e8res Astro\",\"description\":\"&quot;Heureux soient les f\u00eal\u00e9s, car ils laisseront passer la lumi\u00e8re.&quot; Michel Audiard\",\"publisher\":{\"@id\":\"https:\\\/\\\/reperes-astro.fr\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/reperes-astro.fr\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"fr-FR\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/reperes-astro.fr\\\/#organization\",\"name\":\"Rep\u00e8res Astro\",\"url\":\"https:\\\/\\\/reperes-astro.fr\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\\\/\\\/reperes-astro.fr\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/reperes-astro.fr\\\/%77%70%2d%63%6f%6e%74%65%6e%74\\\/uploads\\\/2014\\\/01\\\/logo-reperes1.jpg\",\"contentUrl\":\"https:\\\/\\\/reperes-astro.fr\\\/%77%70%2d%63%6f%6e%74%65%6e%74\\\/uploads\\\/2014\\\/01\\\/logo-reperes1.jpg\",\"width\":510,\"height\":510,\"caption\":\"Rep\u00e8res Astro\"},\"image\":{\"@id\":\"https:\\\/\\\/reperes-astro.fr\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/AssoReperesAstro\\\/?locale=fr_FRrplanetarium\"]},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/reperes-astro.fr\\\/#\\\/schema\\\/person\\\/14ae1ee92a60868e90f005146ca2f8d8\",\"name\":\"Franck\",\"url\":\"https:\\\/\\\/reperes-astro.fr\\\/author\\\/franck-karine\\\/\"}]}<\/script>","yoast_head_json":{"title":"Tutoriel Siril 1.4 - Rep\u00e8res Astro","description":"Un tutoriel Siril 1.4 Depuis sa cr\u00e9ation, ce logiciel n'a cess\u00e9 d'\u00e9voluer pour satisfaire ses utilisateurs passionn\u00e9s d'astrophotographies.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/reperes-astro.fr\/tutoriel-siril-1-4\/","og_locale":"fr_FR","og_type":"article","og_title":"Tutoriel Siril 1.4 - Rep\u00e8res Astro","og_description":"Un tutoriel Siril 1.4 Depuis sa cr\u00e9ation, ce logiciel n'a cess\u00e9 d'\u00e9voluer pour satisfaire ses utilisateurs passionn\u00e9s d'astrophotographies.","og_url":"https:\/\/reperes-astro.fr\/tutoriel-siril-1-4\/","og_site_name":"Rep\u00e8res Astro","article_publisher":"https:\/\/www.facebook.com\/AssoReperesAstro\/?locale=fr_FRrplanetarium","article_published_time":"2026-03-13T16:18:24+00:00","article_modified_time":"2026-03-14T11:25:06+00:00","og_image":[{"width":532,"height":215,"url":"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2024\/11\/free_astro.siril_-e1731327990141.png","type":"image\/png"}],"author":"Franck","twitter_card":"summary_large_image","twitter_misc":{"\u00c9crit par":"Franck","Dur\u00e9e de lecture estim\u00e9e":"11 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/reperes-astro.fr\/tutoriel-siril-1-4\/#article","isPartOf":{"@id":"https:\/\/reperes-astro.fr\/tutoriel-siril-1-4\/"},"author":{"name":"Franck","@id":"https:\/\/reperes-astro.fr\/#\/schema\/person\/14ae1ee92a60868e90f005146ca2f8d8"},"headline":"Tutoriel Siril 1.4","datePublished":"2026-03-13T16:18:24+00:00","dateModified":"2026-03-14T11:25:06+00:00","mainEntityOfPage":{"@id":"https:\/\/reperes-astro.fr\/tutoriel-siril-1-4\/"},"wordCount":2292,"publisher":{"@id":"https:\/\/reperes-astro.fr\/#organization"},"image":{"@id":"https:\/\/reperes-astro.fr\/tutoriel-siril-1-4\/#primaryimage"},"thumbnailUrl":"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2024\/11\/free_astro.siril_-e1731327990141.png","articleSection":["Logiciel","Outils","Publications"],"inLanguage":"fr-FR"},{"@type":"WebPage","@id":"https:\/\/reperes-astro.fr\/tutoriel-siril-1-4\/","url":"https:\/\/reperes-astro.fr\/tutoriel-siril-1-4\/","name":"Tutoriel Siril 1.4 - Rep\u00e8res Astro","isPartOf":{"@id":"https:\/\/reperes-astro.fr\/#website"},"primaryImageOfPage":{"@id":"https:\/\/reperes-astro.fr\/tutoriel-siril-1-4\/#primaryimage"},"image":{"@id":"https:\/\/reperes-astro.fr\/tutoriel-siril-1-4\/#primaryimage"},"thumbnailUrl":"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2024\/11\/free_astro.siril_-e1731327990141.png","datePublished":"2026-03-13T16:18:24+00:00","dateModified":"2026-03-14T11:25:06+00:00","description":"Un tutoriel Siril 1.4 Depuis sa cr\u00e9ation, ce logiciel n'a cess\u00e9 d'\u00e9voluer pour satisfaire ses utilisateurs passionn\u00e9s d'astrophotographies.","breadcrumb":{"@id":"https:\/\/reperes-astro.fr\/tutoriel-siril-1-4\/#breadcrumb"},"inLanguage":"fr-FR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/reperes-astro.fr\/tutoriel-siril-1-4\/"]}]},{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/reperes-astro.fr\/tutoriel-siril-1-4\/#primaryimage","url":"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2024\/11\/free_astro.siril_-e1731327990141.png","contentUrl":"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2024\/11\/free_astro.siril_-e1731327990141.png","width":532,"height":215},{"@type":"BreadcrumbList","@id":"https:\/\/reperes-astro.fr\/tutoriel-siril-1-4\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Accueil","item":"https:\/\/reperes-astro.fr\/"},{"@type":"ListItem","position":2,"name":"Tutoriel Siril 1.4"}]},{"@type":"WebSite","@id":"https:\/\/reperes-astro.fr\/#website","url":"https:\/\/reperes-astro.fr\/","name":"Rep\u00e8res Astro","description":"&quot;Heureux soient les f\u00eal\u00e9s, car ils laisseront passer la lumi\u00e8re.&quot; Michel Audiard","publisher":{"@id":"https:\/\/reperes-astro.fr\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/reperes-astro.fr\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"fr-FR"},{"@type":"Organization","@id":"https:\/\/reperes-astro.fr\/#organization","name":"Rep\u00e8res Astro","url":"https:\/\/reperes-astro.fr\/","logo":{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/reperes-astro.fr\/#\/schema\/logo\/image\/","url":"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2014\/01\/logo-reperes1.jpg","contentUrl":"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2014\/01\/logo-reperes1.jpg","width":510,"height":510,"caption":"Rep\u00e8res Astro"},"image":{"@id":"https:\/\/reperes-astro.fr\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/AssoReperesAstro\/?locale=fr_FRrplanetarium"]},{"@type":"Person","@id":"https:\/\/reperes-astro.fr\/#\/schema\/person\/14ae1ee92a60868e90f005146ca2f8d8","name":"Franck","url":"https:\/\/reperes-astro.fr\/author\/franck-karine\/"}]}},"_links":{"self":[{"href":"https:\/\/reperes-astro.fr\/%77%70%2d%6a%73%6f%6e\/wp\/v2\/posts\/22453","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/reperes-astro.fr\/%77%70%2d%6a%73%6f%6e\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/reperes-astro.fr\/%77%70%2d%6a%73%6f%6e\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/reperes-astro.fr\/%77%70%2d%6a%73%6f%6e\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/reperes-astro.fr\/%77%70%2d%6a%73%6f%6e\/wp\/v2\/comments?post=22453"}],"version-history":[{"count":102,"href":"https:\/\/reperes-astro.fr\/%77%70%2d%6a%73%6f%6e\/wp\/v2\/posts\/22453\/revisions"}],"predecessor-version":[{"id":22604,"href":"https:\/\/reperes-astro.fr\/%77%70%2d%6a%73%6f%6e\/wp\/v2\/posts\/22453\/revisions\/22604"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/reperes-astro.fr\/%77%70%2d%6a%73%6f%6e\/wp\/v2\/media\/15007"}],"wp:attachment":[{"href":"https:\/\/reperes-astro.fr\/%77%70%2d%6a%73%6f%6e\/wp\/v2\/media?parent=22453"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/reperes-astro.fr\/%77%70%2d%6a%73%6f%6e\/wp\/v2\/categories?post=22453"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/reperes-astro.fr\/%77%70%2d%6a%73%6f%6e\/wp\/v2\/tags?post=22453"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}