{"id":9386,"date":"2017-12-30T23:53:45","date_gmt":"2017-12-30T21:53:45","guid":{"rendered":"https:\/\/www.roumazeilles.net\/news\/fr\/wordpress\/?p=9386"},"modified":"2017-11-30T23:58:05","modified_gmt":"2017-11-30T21:58:05","slug":"photos-a-zero-bruit-numerique","status":"publish","type":"post","link":"https:\/\/www.roumazeilles.net\/news\/fr\/wordpress\/2017\/12\/30\/photos-a-zero-bruit-numerique\/","title":{"rendered":"Photos \u00e0 z\u00e9ro bruit num\u00e9rique"},"content":{"rendered":"<p>Il y a quelques ann\u00e9es, j&rsquo;avais mentionn\u00e9 la\u00a0<a href=\"http:\/\/www.guillermoluijk.com\/article\/nonoise\/index_en.htm\">technique de Guillermo Luijk pour retirer compl\u00e8tement le bruit num\u00e9rique des photos<\/a>. La solution qu&rsquo;il propose reste simple :<\/p>\n<ol>\n<li>Prendre la photo avec une exposition correcte en utilisant le traitement habituel ;<\/li>\n<li>Prendre une seconde photo identique mais en r\u00e9duisant la vitesse de 4 positions de diaphragme que l&rsquo;on corrigera au d\u00e9veloppement du fichier RAW (la consid\u00e9rable sur-exposition permettra d&rsquo;obtenir des informations d\u00e9nu\u00e9es de bruit dans les zones qui auraient \u00e9t\u00e9 sous-expos\u00e9es autrement) ;<\/li>\n<li>Combiner intelligemment les deux images pour obtenir une image sans bruit.<\/li>\n<\/ol>\n<p>J&rsquo;avais oubli\u00e9 de mentionner que le logiciel de Guillermo Luijk \u00e9tait disponible : <a href=\"http:\/\/www.guillermoluijk.com\/software\/zeronoise\/index.htm\">Zero Noise<\/a>.<\/p>\n<p><center><img decoding=\"async\" src=\"https:\/\/www.roumazeilles.net\/news\/en\/wordpress\/wp-content\/uploads\/sillon.jpg\" alt=\"Comparison of noise and noise-reduced digital images\" \/><\/center>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Il y a quelques ann\u00e9es, j&rsquo;avais mentionn\u00e9 la\u00a0technique de Guillermo Luijk pour retirer compl\u00e8tement le bruit num\u00e9rique des photos. La solution qu&rsquo;il propose reste simple : Prendre la photo avec une exposition correcte en utilisant le traitement habituel ; Prendre une seconde photo identique mais en r\u00e9duisant la vitesse de 4 positions de diaphragme que [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":9388,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3,31,32,33,7],"tags":[1791,1677],"class_list":["post-9386","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-logiciel","category-photo","category-sciences","category-technique","category-utiliser-son-reflex-numerique","tag-bruit-numerique","tag-photo"],"_links":{"self":[{"href":"https:\/\/www.roumazeilles.net\/news\/fr\/wordpress\/wp-json\/wp\/v2\/posts\/9386","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.roumazeilles.net\/news\/fr\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.roumazeilles.net\/news\/fr\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.roumazeilles.net\/news\/fr\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.roumazeilles.net\/news\/fr\/wordpress\/wp-json\/wp\/v2\/comments?post=9386"}],"version-history":[{"count":0,"href":"https:\/\/www.roumazeilles.net\/news\/fr\/wordpress\/wp-json\/wp\/v2\/posts\/9386\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.roumazeilles.net\/news\/fr\/wordpress\/wp-json\/wp\/v2\/media\/9388"}],"wp:attachment":[{"href":"https:\/\/www.roumazeilles.net\/news\/fr\/wordpress\/wp-json\/wp\/v2\/media?parent=9386"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.roumazeilles.net\/news\/fr\/wordpress\/wp-json\/wp\/v2\/categories?post=9386"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.roumazeilles.net\/news\/fr\/wordpress\/wp-json\/wp\/v2\/tags?post=9386"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}