{"id":197,"date":"2015-08-20T15:22:02","date_gmt":"2015-08-20T13:22:02","guid":{"rendered":"http:\/\/www.olivierdoucet.info\/blog\/?p=197"},"modified":"2015-08-20T15:22:02","modified_gmt":"2015-08-20T13:22:02","slug":"quoi-sert-le-protune-sur-les-gopro","status":"publish","type":"post","link":"https:\/\/www.olivierdoucet.info\/blog\/2015\/08\/20\/quoi-sert-le-protune-sur-les-gopro\/","title":{"rendered":"A quoi sert le Protune sur les GoPro ?"},"content":{"rendered":"<p>Vous avez craqu\u00e9 juste avant (ou apr\u00e8s) les vacances, et vous avez achet\u00e9 une GoPro ? Super ! Maintenant, en cherchant dans les menus, vous voyez une option nomm\u00e9e \u00ab\u00a0protune\u00a0\u00bb. Faut-il l&rsquo;activer ? En cherchant un peu sur les forums, on vous explique que si vous \u00eates un amateur de montage vid\u00e9o, vous avez int\u00e9r\u00eat \u00e0 l&rsquo;activer. Pourtant, l&rsquo;image parait beaucoup plus terne et morne avec &#8230; Mais pourquoi ?<\/p>\n<p><!--more--><\/p>\n<p>En fait, le param\u00e8tre ProTune influe sur la mani\u00e8re dont les informations sont enregistr\u00e9es dans la vid\u00e9o : il n&rsquo;y a plus aucun traitement de contraste, luminosit\u00e9 ou traitement du bruit comme le fait la gopro par d\u00e9faut (d&rsquo;o\u00f9 une image tr\u00e8s \u00ab\u00a0moyenne\u00a0\u00bb), et les basses lumi\u00e8res \/ hautes lumi\u00e8res (les noirs et les blancs pour faire simple) sont enregistr\u00e9es en logarithmique et non en lin\u00e9aire. En clair : on essaie de stocker beaucoup plus d&rsquo;infos de d\u00e9grad\u00e9 dans les extr\u00eames.<\/p>\n<p>Tout \u00e7a pour quoi ? Vous laisser la main en post-prod pour retoucher avec beaucoup plus de d\u00e9tail vos vid\u00e9os. Alors oui, la retouche reste obligatoire en protune (il faut par exemple appliquer un profil de couleur pour retrouver des images qui d\u00e9chirent, ajouter du contraste, de la luminosit\u00e9, etc. C&rsquo;est plus long, mais le contr\u00f4le est plus pr\u00e9cis que si vous n&rsquo;aviez pas activ\u00e9 l&rsquo;option.<br \/>\nAutre \u00e9l\u00e9ment et pas des moindres : la compression vid\u00e9o en ProTune est bien moindre (15Mbps sans, 35Mbps avec), donc l&rsquo;image est plus propre (mais va en cons\u00e9quence prendre bien plus de place sur vos cartes m\u00e9moires).<\/p>\n<p>En conclusion: si vous voulez mettre en ligne rapidement vos images sans retouche, d\u00e9sactivez protune : la gopro vous fera de belles images bien contrast\u00e9es de base. Si par contre vous voulez passer plus de temps sur vos montages et avoir des images meilleures, activez Protune.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Vous avez craqu\u00e9 juste avant (ou apr\u00e8s) les vacances, et vous avez achet\u00e9 une GoPro ? Super ! Maintenant, en cherchant dans les menus, vous voyez une option nomm\u00e9e \u00ab\u00a0protune\u00a0\u00bb. Faut-il l&rsquo;activer ? En cherchant un peu sur les forums, on vous explique que si vous \u00eates un amateur de montage vid\u00e9o, vous avez int\u00e9r\u00eat &hellip; <a href=\"https:\/\/www.olivierdoucet.info\/blog\/2015\/08\/20\/quoi-sert-le-protune-sur-les-gopro\/\" class=\"more-link\">Continuer la lecture de <span class=\"screen-reader-text\">A quoi sert le Protune sur les GoPro ?<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":198,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[65,67,66],"class_list":["post-197","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized","tag-gopro","tag-protune","tag-video"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>A quoi sert le Protune sur les GoPro ? - My thoughts<\/title>\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.olivierdoucet.info\/blog\/2015\/08\/20\/quoi-sert-le-protune-sur-les-gopro\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"A quoi sert le Protune sur les GoPro ? - My thoughts\" \/>\n<meta property=\"og:description\" content=\"Vous avez craqu\u00e9 juste avant (ou apr\u00e8s) les vacances, et vous avez achet\u00e9 une GoPro ? Super ! Maintenant, en cherchant dans les menus, vous voyez une option nomm\u00e9e \u00ab\u00a0protune\u00a0\u00bb. Faut-il l&rsquo;activer ? En cherchant un peu sur les forums, on vous explique que si vous \u00eates un amateur de montage vid\u00e9o, vous avez int\u00e9r\u00eat &hellip; Continuer la lecture de A quoi sert le Protune sur les GoPro ? &rarr;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.olivierdoucet.info\/blog\/2015\/08\/20\/quoi-sert-le-protune-sur-les-gopro\/\" \/>\n<meta property=\"og:site_name\" content=\"My thoughts\" \/>\n<meta property=\"article:published_time\" content=\"2015-08-20T13:22:02+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.olivierdoucet.info\/blog\/wp-content\/uploads\/2015\/08\/340867_10151236284401919_113148998_o.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1600\" \/>\n\t<meta property=\"og:image:height\" content=\"1200\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Olivier\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@odoucet\" \/>\n<meta name=\"twitter:site\" content=\"@odoucet\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Olivier\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.olivierdoucet.info\/blog\/2015\/08\/20\/quoi-sert-le-protune-sur-les-gopro\/\",\"url\":\"https:\/\/www.olivierdoucet.info\/blog\/2015\/08\/20\/quoi-sert-le-protune-sur-les-gopro\/\",\"name\":\"A quoi sert le Protune sur les GoPro ? 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