{"id":16125,"date":"2023-11-29T14:22:00","date_gmt":"2023-11-29T13:22:00","guid":{"rendered":"https:\/\/oi-paris.com\/wordpress\/?p=16125"},"modified":"2023-11-30T08:58:26","modified_gmt":"2023-11-30T07:58:26","slug":"noir-cest-noir","status":"publish","type":"post","link":"https:\/\/oi-paris.com\/wordpress\/2023\/11\/29\/noir-cest-noir\/","title":{"rendered":"Noir c&#8217;est noir &#8230;"},"content":{"rendered":"\n<p>A la question \u00ab qu\u2019est-ce qu\u2019un beau noir ? \u00bb, la r\u00e9ponse qui vient tout de suite \u00e0 l\u2019esprit est \u00ab Noir c\u2019est noir \u00bb (comprendre &#8220;Noir c&#8217;est RGB = (0,0,0)&#8221;). Exact mais un peu court.<br \/>En effet, RGB = (0,0,0) repr\u00e9sente une densit\u00e9 th\u00e9orique infini donc un noir absolu. Pour avoir une id\u00e9e de ce que peut \u00eatre ce noir absolu, il faudrait regarder par le goulot d\u2019une bouteille enduite de noir de fum\u00e9e sortant du cong\u00e9lateur par nuit noire.<br \/>Dans la pratique, RGB = (0,0,0) est par d\u00e9finition le gris fonc\u00e9 de l\u2019\u00e9cran \u00e9teint (reflets compris). A titre d\u2019exemple, vous pouvez tenter de distinguer les noirs dans la gamme de noirs ci-dessous cod\u00e9es dans l\u2019espace sRGB.<\/p>\n<p><img decoding=\"async\" class=\"wp-image-16123 aligncenter\" src=\"https:\/\/oi-paris.com\/wordpress\/wp-content\/uploads\/2023\/11\/Gammes_Noirs_sRGB_2.jpg\" alt=\"Gamme de noirs sRGB\" width=\"750\" \/><\/p>\n<p>L\u2019espace sRGB \u00e9tant con\u00e7u pour l\u2019affichage \u00e0 l\u2019\u00e9cran, tous les niveaux peuvent en principe \u00eatre distingu\u00e9s (le navigateur web peut modifier le profil). En revanche, l\u2019espace Adobe RGB permettant de coder des densit\u00e9s plus \u00e9lev\u00e9es provoque une saturation des noirs \u00e0 l\u2019\u00e9cran (et \u00e0 l\u2019impression) offrant ainsi la possibilit\u00e9 de tirer le meilleur parti de l\u2019imprimante en termes de nuances autour de la densit\u00e9 maximale.<\/p>\n<p><img decoding=\"async\" class=\" wp-image-16122 aligncenter\" src=\"https:\/\/oi-paris.com\/wordpress\/wp-content\/uploads\/2023\/11\/Gammes_Noirs_Adobe_RGB.jpg\" alt=\"Gamme de noirs Adobe RGB\" width=\"750\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Une r\u00e9cente discussion sur notre groupe Whatsapp et l\u2019exposition \u00ab Noir &amp; Blanc \u00bb \u00e0 la BNF sont l\u2019occasion de revenir sur les fondements de la pens\u00e9e de Johnny.<\/p>\n","protected":false},"author":100,"featured_media":16127,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_oasis_is_in_workflow":0,"_oasis_original":0,"_uag_custom_page_level_css":"","footnotes":""},"categories":[9,11],"tags":[],"class_list":["post-16125","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-photo","category-trucs-et-astuces"],"acf":[],"uagb_featured_image_src":{"full":["https:\/\/oi-paris.com\/wordpress\/wp-content\/uploads\/2023\/11\/Gammes_Noirs_sRGB.jpg",1440,617,false],"thumbnail":["https:\/\/oi-paris.com\/wordpress\/wp-content\/uploads\/2023\/11\/Gammes_Noirs_sRGB-150x150.jpg",150,150,true],"medium":["https:\/\/oi-paris.com\/wordpress\/wp-content\/uploads\/2023\/11\/Gammes_Noirs_sRGB-300x129.jpg",300,129,true],"medium_large":["https:\/\/oi-paris.com\/wordpress\/wp-content\/uploads\/2023\/11\/Gammes_Noirs_sRGB-768x329.jpg",768,329,true],"large":["https:\/\/oi-paris.com\/wordpress\/wp-content\/uploads\/2023\/11\/Gammes_Noirs_sRGB-1024x439.jpg",1024,439,true],"1536x1536":["https:\/\/oi-paris.com\/wordpress\/wp-content\/uploads\/2023\/11\/Gammes_Noirs_sRGB.jpg",1440,617,false],"2048x2048":["https:\/\/oi-paris.com\/wordpress\/wp-content\/uploads\/2023\/11\/Gammes_Noirs_sRGB.jpg",1440,617,false],"thumb-small":["https:\/\/oi-paris.com\/wordpress\/wp-content\/uploads\/2023\/11\/Gammes_Noirs_sRGB-80x80.jpg",80,80,true],"thumb-standard":["https:\/\/oi-paris.com\/wordpress\/wp-content\/uploads\/2023\/11\/Gammes_Noirs_sRGB-320x320.jpg",320,320,true],"thumb-medium":["https:\/\/oi-paris.com\/wordpress\/wp-content\/uploads\/2023\/11\/Gammes_Noirs_sRGB-520x245.jpg",520,245,true],"thumb-large":["https:\/\/oi-paris.com\/wordpress\/wp-content\/uploads\/2023\/11\/Gammes_Noirs_sRGB-720x340.jpg",720,340,true],"thumb-xlarge":["https:\/\/oi-paris.com\/wordpress\/wp-content\/uploads\/2023\/11\/Gammes_Noirs_sRGB-980x450.jpg",980,450,true],"thumb-xxlarge":["https:\/\/oi-paris.com\/wordpress\/wp-content\/uploads\/2023\/11\/Gammes_Noirs_sRGB-1320x500.jpg",1320,500,true],"mailpoet_newsletter_max":["https:\/\/oi-paris.com\/wordpress\/wp-content\/uploads\/2023\/11\/Gammes_Noirs_sRGB-1320x566.jpg",1320,566,true]},"uagb_author_info":{"display_name":"Philippe Bernet","author_link":"https:\/\/oi-paris.com\/wordpress\/author\/bernetphilippe\/"},"uagb_comment_info":0,"uagb_excerpt":"Une r\u00e9cente discussion sur notre groupe Whatsapp et l\u2019exposition \u00ab Noir &amp; Blanc \u00bb \u00e0 la BNF sont l\u2019occasion de revenir sur les fondements de la pens\u00e9e de Johnny.","_links":{"self":[{"href":"https:\/\/oi-paris.com\/wordpress\/wp-json\/wp\/v2\/posts\/16125","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oi-paris.com\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/oi-paris.com\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/oi-paris.com\/wordpress\/wp-json\/wp\/v2\/users\/100"}],"replies":[{"embeddable":true,"href":"https:\/\/oi-paris.com\/wordpress\/wp-json\/wp\/v2\/comments?post=16125"}],"version-history":[{"count":11,"href":"https:\/\/oi-paris.com\/wordpress\/wp-json\/wp\/v2\/posts\/16125\/revisions"}],"predecessor-version":[{"id":16138,"href":"https:\/\/oi-paris.com\/wordpress\/wp-json\/wp\/v2\/posts\/16125\/revisions\/16138"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oi-paris.com\/wordpress\/wp-json\/wp\/v2\/media\/16127"}],"wp:attachment":[{"href":"https:\/\/oi-paris.com\/wordpress\/wp-json\/wp\/v2\/media?parent=16125"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/oi-paris.com\/wordpress\/wp-json\/wp\/v2\/categories?post=16125"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/oi-paris.com\/wordpress\/wp-json\/wp\/v2\/tags?post=16125"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}