{"id":969,"date":"2012-12-26T22:34:49","date_gmt":"2012-12-26T22:34:49","guid":{"rendered":"http:\/\/www.visionlarge.ch\/Blog\/?p=969"},"modified":"2026-01-18T12:01:29","modified_gmt":"2026-01-18T11:01:29","slug":"enlever-certaines-parties-grace-a-la-couche-alpha-avec-gimp-complement-partie-3a","status":"publish","type":"post","link":"https:\/\/www.visionlarge.ch\/Blog\/enlever-certaines-parties-grace-a-la-couche-alpha-avec-gimp-complement-partie-3a\/","title":{"rendered":"Enlever certaines parties gr\u00e2ce \u00e0 la couche alpha avec Gimp. Compl\u00e9ment partie 3a"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">Enlever certaines parties gr\u00e2ce \u00e0 la couche alpha avec Gimp. Compl\u00e9ment partie 4<\/h2>\n\n\n\n<p class=\"has-text-align-center\">Hello! Pour les personnes utilisant Gimp&#8230; c&rsquo;est pas la m\u00eame chose que Photoshop.<\/p>\n\n\n\n<p class=\"has-text-align-center\">Pour vous aider, j&rsquo;ai donc t\u00e9l\u00e9charg\u00e9 la <a href=\"http:\/\/www.gimp.org\/downloads\/\">derni\u00e8re version de Gimp soit la 2.8.<\/a><\/p>\n\n\n\n<p class=\"has-text-align-center\">Voil\u00e0 la manip!<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><a href=\"http:\/\/www.visionlarge.ch\/Blog\/wp-content\/uploads\/Attache2.jpg\"><img decoding=\"async\" src=\"http:\/\/www.visionlarge.ch\/Blog\/wp-content\/uploads\/Attache2-300x200.jpg\" alt=\"Photo ou je veux r\u00e9cup\u00e9rer le croix verte.\" class=\"wp-image-970\"\/><\/a><figcaption class=\"wp-element-caption\">Photo ou je veux enlever la croix verte.<\/figcaption><\/figure>\n<\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><a href=\"http:\/\/www.visionlarge.ch\/Blog\/wp-content\/uploads\/Attache1.jpg\"><img decoding=\"async\" src=\"http:\/\/www.visionlarge.ch\/Blog\/wp-content\/uploads\/Attache1-300x200.jpg\" alt=\"Image ou je d\u00e9sirerais voir la croix verte\" class=\"wp-image-972\"\/><\/a><figcaption class=\"wp-element-caption\">Image qui sera superpos\u00e9e \u00e0 la premi\u00e8re comme un nadir par exemple&#8230;<\/figcaption><\/figure>\n<\/div>\n\n\n<p class=\"has-text-align-center\">Tout d&rsquo;abord, je vais ouvrir l&rsquo;image avec la croix&#8230; cela pourrait \u00eatre le nadir avec mon pied&#8230;<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><a href=\"http:\/\/www.visionlarge.ch\/Blog\/wp-content\/uploads\/Capture-d\u2019\u00e9cran-2012-12-26-\u00e0-23.20.52.jpg\"><img decoding=\"async\" src=\"http:\/\/www.visionlarge.ch\/Blog\/wp-content\/uploads\/Capture-d\u2019\u00e9cran-2012-12-26-\u00e0-23.20.52-300x159.jpg\" alt=\"J'ai ouvert sous Gimp mon image\" class=\"wp-image-973\"\/><\/a><figcaption class=\"wp-element-caption\">J&rsquo;ai ouvert sous Gimp mon image<\/figcaption><\/figure>\n<\/div>\n\n\n<p class=\"has-text-align-center\">Puis, je vais dans le menu<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><a href=\"http:\/\/www.visionlarge.ch\/Blog\/wp-content\/uploads\/Capture-d\u2019\u00e9cran-2012-12-26-\u00e0-23.20.34.jpg\" rel=\"lightbox\"><img decoding=\"async\" src=\"http:\/\/www.visionlarge.ch\/Blog\/wp-content\/uploads\/Capture-d\u2019\u00e9cran-2012-12-26-\u00e0-23.20.34-300x202.jpg\" alt=\"Aller dans le menu\" class=\"wp-image-974\"\/><\/a><figcaption class=\"wp-element-caption\">Aller dans le menu Calque \/ Transparence \/ Ajouter un canal Alpha<\/figcaption><\/figure>\n<\/div>\n\n\n<p class=\"has-text-align-center\">Il ne reste plus grand chose \u00e0 faire \ud83d\ude09<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><a href=\"http:\/\/www.visionlarge.ch\/Blog\/wp-content\/uploads\/Capture-d\u2019\u00e9cran-2012-12-26-\u00e0-23.24.50.jpg\" rel=\"lightbox\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"63\" src=\"http:\/\/www.visionlarge.ch\/Blog\/wp-content\/uploads\/2012\/12\/banniere-300x63.jpg\" alt=\"Les les canaux, un nouveau masque est venu. L'alpha!\" class=\"wp-image-976\" srcset=\"https:\/\/www.visionlarge.ch\/Blog\/wp-content\/uploads\/2012\/12\/banniere-300x63.jpg 300w, https:\/\/www.visionlarge.ch\/Blog\/wp-content\/uploads\/2012\/12\/banniere-600x126.jpg 600w, https:\/\/www.visionlarge.ch\/Blog\/wp-content\/uploads\/2012\/12\/banniere.jpg 940w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><figcaption class=\"wp-element-caption\">Les les canaux, un nouveau masque est venu. L&rsquo;alpha!<\/figcaption><\/figure>\n<\/div>\n\n\n<p class=\"has-text-align-center\">S\u00e9lectionner le&nbsp;canaux&nbsp;Alpha en cliquant dessus, il devient l\u00e9g\u00e8rement gris fonc\u00e9.<\/p>\n\n\n\n<p class=\"has-text-align-center\">S\u00e9lectionner l&rsquo;outils gomme, et effac\u00e9 ce qui d\u00e9range!<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><a href=\"http:\/\/www.visionlarge.ch\/Blog\/wp-content\/uploads\/Capture-d\u2019\u00e9cran-2012-12-26-\u00e0-23.27.29.jpg\" rel=\"lightbox\"><img loading=\"lazy\" decoding=\"async\" width=\"940\" height=\"198\" src=\"http:\/\/www.visionlarge.ch\/Blog\/wp-content\/uploads\/2012\/12\/copy-banniere.jpg\" alt=\"L'outil gomme\" class=\"wp-image-977\" srcset=\"https:\/\/www.visionlarge.ch\/Blog\/wp-content\/uploads\/2012\/12\/copy-banniere.jpg 940w, https:\/\/www.visionlarge.ch\/Blog\/wp-content\/uploads\/2012\/12\/copy-banniere-600x126.jpg 600w, https:\/\/www.visionlarge.ch\/Blog\/wp-content\/uploads\/2012\/12\/copy-banniere-300x63.jpg 300w\" sizes=\"auto, (max-width: 940px) 100vw, 940px\" \/><\/a><figcaption class=\"wp-element-caption\">L&rsquo;outil gomme<\/figcaption><\/figure>\n<\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><a href=\"http:\/\/www.visionlarge.ch\/Blog\/wp-content\/uploads\/Capture-d\u2019\u00e9cran-2012-12-26-\u00e0-23.27.57.jpg\" rel=\"lightbox\"><img decoding=\"async\" src=\"http:\/\/www.visionlarge.ch\/Blog\/wp-content\/uploads\/Capture-d\u2019\u00e9cran-2012-12-26-\u00e0-23.27.57-300x159.jpg\" alt=\"J'ai effac\u00e9 ici la croix avec la gomme.\" class=\"wp-image-978\"\/><\/a><figcaption class=\"wp-element-caption\">J&rsquo;ai effac\u00e9 ici la croix avec la gomme.<\/figcaption><\/figure>\n<\/div>\n\n\n<p class=\"has-text-align-center\">Puis exporter en format Png, qui supporte la transparence.<\/p>\n\n\n\n<p class=\"has-text-align-center\">C&rsquo;est fait!<\/p>\n\n\n\n<p class=\"has-text-align-center\">et cela fonctionne bien sur&#8230;<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><a href=\"http:\/\/www.visionlarge.ch\/Blog\/wp-content\/uploads\/Capture-d\u2019\u00e9cran-2012-12-26-\u00e0-23.33.00.jpg\" rel=\"lightbox\"><img decoding=\"async\" src=\"http:\/\/www.visionlarge.ch\/Blog\/wp-content\/uploads\/Capture-d\u2019\u00e9cran-2012-12-26-\u00e0-23.33.00.jpg\" alt=\"couche alpha\" class=\"wp-image-979\"\/><\/a><figcaption class=\"wp-element-caption\">Et voil\u00e0<\/figcaption><\/figure>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Enlever certaines parties gr\u00e2ce \u00e0 la couche alpha avec Gimp. Compl\u00e9ment partie 4 Hello! Pour les personnes utilisant Gimp&#8230; c&rsquo;est pas la m\u00eame chose que Photoshop. Pour vous aider, j&rsquo;ai donc t\u00e9l\u00e9charg\u00e9 la derni\u00e8re version de Gimp soit la 2.8. Voil\u00e0 la manip! Tout d&rsquo;abord, je vais ouvrir l&rsquo;image avec&#8230;<\/p>\n<div class=\"more-link-wrapper\"><a class=\"more-link\" href=\"https:\/\/www.visionlarge.ch\/Blog\/enlever-certaines-parties-grace-a-la-couche-alpha-avec-gimp-complement-partie-3a\/\">La suite? C&#039;est par l\u00e0!<span class=\"screen-reader-text\">Enlever certaines parties gr\u00e2ce \u00e0 la couche alpha avec Gimp. Compl\u00e9ment partie 3a<\/span><\/a><\/div>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"iawp_total_views":20,"footnotes":""},"categories":[6],"tags":[34,172],"class_list":["post-969","post","type-post","status-publish","format-standard","hentry","category-tutos","tag-panorama","tag-tuto","excerpt","zoom","full-without-featured","even","excerpt-0"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Enlever certaines parties gr\u00e2ce \u00e0 la couche alpha avec Gimp<\/title>\n<meta name=\"description\" content=\"Enlever certaines parties gr\u00e2ce \u00e0 la couche alpha avec Gimp.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.visionlarge.ch\/Blog\/enlever-certaines-parties-grace-a-la-couche-alpha-avec-gimp-complement-partie-3a\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Enlever certaines parties gr\u00e2ce \u00e0 la couche alpha avec Gimp\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.visionlarge.ch\/Blog\/enlever-certaines-parties-grace-a-la-couche-alpha-avec-gimp-complement-partie-3a\/\" \/>\n<meta property=\"og:site_name\" content=\"Visionlarge.ch\" \/>\n<meta property=\"article:published_time\" content=\"2012-12-26T22:34:49+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-01-18T11:01:29+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.visionlarge.ch\/Blog\/wp-content\/uploads\/Dans-les-forets-du-Jura-2024-scaled.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2560\" \/>\n\t<meta property=\"og:image:height\" content=\"1750\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Visionlarge\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@visionlarge\" \/>\n<meta name=\"twitter:site\" content=\"@visionlarge\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Visionlarge\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.visionlarge.ch\\\/Blog\\\/enlever-certaines-parties-grace-a-la-couche-alpha-avec-gimp-complement-partie-3a\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.visionlarge.ch\\\/Blog\\\/enlever-certaines-parties-grace-a-la-couche-alpha-avec-gimp-complement-partie-3a\\\/\"},\"author\":{\"name\":\"Visionlarge\",\"@id\":\"https:\\\/\\\/www.visionlarge.ch\\\/Blog\\\/#\\\/schema\\\/person\\\/b1280adcf8dd414efb101660dca80274\"},\"headline\":\"Enlever certaines parties gr\u00e2ce \u00e0 la couche alpha avec Gimp. 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