{"id":968,"date":"2025-01-14T10:04:25","date_gmt":"2025-01-14T09:04:25","guid":{"rendered":"https:\/\/voyage-astrophoto.fr\/?p=968"},"modified":"2026-04-02T15:23:50","modified_gmt":"2026-04-02T13:23:50","slug":"conversion-de-png-sharpcap","status":"publish","type":"post","link":"https:\/\/voyage-astrophoto.fr\/index.php\/2025\/01\/14\/conversion-de-png-sharpcap\/","title":{"rendered":"Conversion de PNG SharpCap tram\u00e9s"},"content":{"rendered":"\n<p>Au cours de ma session du <a href=\"https:\/\/voyage-astrophoto.fr\/index.php\/2024\/12\/18\/transit-de-liss-devant-le-soleil-le-retour\/\" data-type=\"post\" data-id=\"882\">Transit de l\u2019ISS devant le soleil, le retour<\/a>, j&rsquo;ai utilis\u00e9 le logiciel SharpCap pour faire les prises de vues avec ma cam\u00e9ra plan\u00e9taire. Normalement je choisis le format d&rsquo;enregistrement SER, qui est une vid\u00e9o non compress\u00e9e. Ce jour l\u00e0 je me suis tromp\u00e9, et le format de sortie \u00e9tait \u00ab\u00a0Fichiers PNG\u00a0\u00bb, en couleur.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"486\" height=\"438\" src=\"https:\/\/voyage-astrophoto.fr\/wp-content\/uploads\/2025\/01\/SharpCap.jpg\" alt=\"\" class=\"wp-image-971\" srcset=\"https:\/\/voyage-astrophoto.fr\/wp-content\/uploads\/2025\/01\/SharpCap.jpg 486w, https:\/\/voyage-astrophoto.fr\/wp-content\/uploads\/2025\/01\/SharpCap-300x270.jpg 300w\" sizes=\"auto, (max-width: 486px) 100vw, 486px\" \/><\/figure>\n<\/div>\n\n\n<p>Le probl\u00e8me est que ces fichiers PNG couleur, g\u00e9n\u00e9r\u00e9s par SharpCap, sont compl\u00e8tement tram\u00e9s :<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"647\" src=\"https:\/\/voyage-astrophoto.fr\/wp-content\/uploads\/2025\/01\/png-trame-1024x647.jpg\" alt=\"\" class=\"wp-image-973\" srcset=\"https:\/\/voyage-astrophoto.fr\/wp-content\/uploads\/2025\/01\/png-trame-1024x647.jpg 1024w, https:\/\/voyage-astrophoto.fr\/wp-content\/uploads\/2025\/01\/png-trame-300x189.jpg 300w, https:\/\/voyage-astrophoto.fr\/wp-content\/uploads\/2025\/01\/png-trame-768x485.jpg 768w, https:\/\/voyage-astrophoto.fr\/wp-content\/uploads\/2025\/01\/png-trame.jpg 1457w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<p>En zoomant sur l&rsquo;ISS on s&rsquo;en rend bien compte : il y a plein de carr\u00e9s \ud83e\udd28<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"959\" height=\"800\" src=\"https:\/\/voyage-astrophoto.fr\/wp-content\/uploads\/2025\/01\/png-trame-2.jpg\" alt=\"\" class=\"wp-image-974\" srcset=\"https:\/\/voyage-astrophoto.fr\/wp-content\/uploads\/2025\/01\/png-trame-2.jpg 959w, https:\/\/voyage-astrophoto.fr\/wp-content\/uploads\/2025\/01\/png-trame-2-300x250.jpg 300w, https:\/\/voyage-astrophoto.fr\/wp-content\/uploads\/2025\/01\/png-trame-2-768x641.jpg 768w\" sizes=\"auto, (max-width: 959px) 100vw, 959px\" \/><\/figure>\n<\/div>\n\n\n<p>Est-ce que les images de l&rsquo;ISS que j&rsquo;ai prises sont du coup inexploitables ? Je n&rsquo;esp\u00e8re pas !<\/p>\n\n\n\n<p>Apr\u00e8s de nombreuses recherches, je constate que mes fichiers PNG ne sont pas d\u00e9matric\u00e9s (ou d\u00e9bayeris\u00e9s) :  les couleurs de l&rsquo;image, rouge, vert et bleu y apparaissent en teinte de gris.<\/p>\n\n\n\n<p>Pour d\u00e9matricer mes images, je trouve que je peux utiliser le logiciel PIPP <a href=\"https:\/\/web.archive.org\/web\/20230531163522\/https:\/\/sites.google.com\/site\/astropipp\/downloads\">https:\/\/web.archive.org\/web\/20230531163522\/https:\/\/sites.google.com\/site\/astropipp\/downloads<\/a> pour convertir mes fichiers.<\/p>\n\n\n\n<p>Il faut, dans l&rsquo;onglet \u00ab\u00a0Input Options\u00a0\u00bb, cocher \u00ab\u00a0Debayer Monochrome Frames\u00a0\u00bb et mettre \u00ab\u00a0RGGB\u00a0\u00bb dans le \u00ab\u00a0Debayer Pattern\u00a0\u00bb (RGGB \u00e9tant la matrice de Bayer de ma cam\u00e9ra) :<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"859\" height=\"517\" src=\"https:\/\/voyage-astrophoto.fr\/wp-content\/uploads\/2025\/01\/PIPP.png\" alt=\"\" class=\"wp-image-979\" srcset=\"https:\/\/voyage-astrophoto.fr\/wp-content\/uploads\/2025\/01\/PIPP.png 859w, https:\/\/voyage-astrophoto.fr\/wp-content\/uploads\/2025\/01\/PIPP-300x181.png 300w, https:\/\/voyage-astrophoto.fr\/wp-content\/uploads\/2025\/01\/PIPP-768x462.png 768w\" sizes=\"auto, (max-width: 859px) 100vw, 859px\" \/><\/figure>\n<\/div>\n\n\n<p>Une fois la conversion faite, on se retrouve avec une image \u00ab\u00a0normale\u00a0\u00bb :<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"957\" height=\"716\" src=\"https:\/\/voyage-astrophoto.fr\/wp-content\/uploads\/2025\/01\/png-detrame-2.jpg\" alt=\"\" class=\"wp-image-983\" srcset=\"https:\/\/voyage-astrophoto.fr\/wp-content\/uploads\/2025\/01\/png-detrame-2.jpg 957w, https:\/\/voyage-astrophoto.fr\/wp-content\/uploads\/2025\/01\/png-detrame-2-300x224.jpg 300w, https:\/\/voyage-astrophoto.fr\/wp-content\/uploads\/2025\/01\/png-detrame-2-768x575.jpg 768w\" sizes=\"auto, (max-width: 957px) 100vw, 957px\" \/><\/figure>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Au cours de ma session du Transit de l\u2019ISS devant le soleil, le retour, j&rsquo;ai utilis\u00e9 le logiciel SharpCap pour faire les prises de vues avec ma cam\u00e9ra plan\u00e9taire. Normalement je choisis le format d&rsquo;enregistrement SER, qui est une vid\u00e9o non compress\u00e9e. Ce jour l\u00e0 je me suis tromp\u00e9, et le format de sortie \u00e9tait [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":979,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[23],"tags":[41,40],"class_list":["post-968","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-astuces","tag-pipp","tag-sharpcap"],"_links":{"self":[{"href":"https:\/\/voyage-astrophoto.fr\/index.php\/wp-json\/wp\/v2\/posts\/968","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/voyage-astrophoto.fr\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/voyage-astrophoto.fr\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/voyage-astrophoto.fr\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/voyage-astrophoto.fr\/index.php\/wp-json\/wp\/v2\/comments?post=968"}],"version-history":[{"count":7,"href":"https:\/\/voyage-astrophoto.fr\/index.php\/wp-json\/wp\/v2\/posts\/968\/revisions"}],"predecessor-version":[{"id":984,"href":"https:\/\/voyage-astrophoto.fr\/index.php\/wp-json\/wp\/v2\/posts\/968\/revisions\/984"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/voyage-astrophoto.fr\/index.php\/wp-json\/wp\/v2\/media\/979"}],"wp:attachment":[{"href":"https:\/\/voyage-astrophoto.fr\/index.php\/wp-json\/wp\/v2\/media?parent=968"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/voyage-astrophoto.fr\/index.php\/wp-json\/wp\/v2\/categories?post=968"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/voyage-astrophoto.fr\/index.php\/wp-json\/wp\/v2\/tags?post=968"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}