{"id":4542,"date":"2018-12-04T07:23:11","date_gmt":"2018-12-04T06:23:11","guid":{"rendered":"http:\/\/www.blog.neoprog.eu\/?p=4542"},"modified":"2018-12-04T07:23:11","modified_gmt":"2018-12-04T06:23:11","slug":"photo-mattons-le-developpement-5","status":"publish","type":"post","link":"https:\/\/www.blog.neoprog.eu\/index.php\/2018\/12\/04\/photo-mattons-le-developpement-5\/","title":{"rendered":"Photo mattons – le d\u00e9veloppement – 5"},"content":{"rendered":"\n
\"\"<\/figure>\n\n\n\n

En photographie, l’action de transformer ses photographies avec un logiciel comme Lightroom ou Photoshop s\u2019appelle la retouche, pour ma part je lui pr\u00e9f\u00e8re le mot d\u00e9veloppement. <\/p>\n\n\n\n

Pourquoi photographier en RAW plut\u00f4t qu’en JPEG ? <\/p>\n\n\n\n

Le format RAW transporte toutes les informations relatives \u00e0 la prise de vue (exposition, ouverture, sensibilit\u00e9, heure, lieu, balance des blancs…). Il permet \u00e9galement des modifications non destructives de votre image. Car quand vous modifiez un JPEG, un PNG ou un TIFF, chaque changement alt\u00e8re d\u00e9finitivement l’image et le retour arri\u00e8re n’est plus possible une fois que vous avez quitt\u00e9 le logiciel de retouche.<\/p>\n\n\n\n

En RAW, c’est un petit fichier annexe qui contient les transformations et celles-ci sont appliqu\u00e9es \u00e0 la vol\u00e9e devant vos yeux. Vous pouvez revenir sur une transformation, la supprimer, la modifier, m\u00eame plusieurs jours apr\u00e8s. Vous pouvez m\u00eame recommencer \u00e0 z\u00e9ro votre travail, essayer plusieurs versions de la m\u00eame images, ceci \u00e0 condition de conserver bien entendu le pr\u00e9cieux fichier.<\/p>\n\n\n\n

Un fichier RAW n’est pas une image, m\u00eame si certains syst\u00e8mes d’exploitations, comme Windows 10, savent maintenant afficher une vignette de la photographie. Un fichier RAW, c’est l’enregistrement brut, le signal num\u00e9ris\u00e9 par le capteur de votre appareil, sans retouche, avec toutes les informations relatives aux r\u00e9glages de votre boitier et objectif.<\/p>\n\n\n\n

Pour transformer un fichier RAW en image pr\u00e9sentable, il vous faudra passer par un outil de d\u00e9veloppement, un peu comme \u00e0 l’\u00e9poque de l’argentique, o\u00f9 l’on transformait une pellicule en \u00e9preuve finale avec un agrandisseur et des bains chimiques, r\u00e9v\u00e9lateur, fixateur. <\/p>\n\n\n\n

Les outils sont nombreux, certains sont livr\u00e9s avec votre appareil, d’autres s’ach\u00e8tent dans le commerce ou se t\u00e9l\u00e9chargent librement. J’en ai essay\u00e9 plusieurs : DXO<\/a>, RAWTherapie<\/a>, Lightroom<\/a>, ACDSee<\/a>, Nikon Capture NX-D<\/a>. <\/p>\n\n\n\n

J’ai commenc\u00e9 avec Nikon Capture, il fait le travail mais reste assez limit\u00e9 et d’une ergonomie hasardeuse. J’ai jou\u00e9 avec RAWTherapie avant de renoncer rapidement car je ne comprenais rien (mais j’\u00e9tais tout d\u00e9butant). J’ai utils\u00e9 DXO mais mon PC ne tient pas la distance face aux ressources exig\u00e9es par le monstre. Finalement, j’ai opt\u00e9, comme beaucoup de monde, pour Lightroom. <\/p>\n\n\n\n

Chacun de ces outils poss\u00e8de avantages et inconv\u00e9nients.  Lightroom est cher, super cher, environ 144 \u20ac par an, car oui c’est un abonnement. Mais il est presque complet, sauf si vous d\u00e9sirez faire de la retouche avec des calques, dans ce cas l\u00e0 il vous faudra Photoshop en plus. <\/p>\n\n\n\n

Ces outils permettent de transformer un RAW en JPEG. Ils permettent de convertir une images couleurs en noir et blanc mais \u00e9galement de jouer sur une quasi infinit\u00e9 de param\u00e8tres de l’image, balance des blancs, cadrage, format, contraste, exposition, lumi\u00e8res, saturation, clart\u00e9, nettet\u00e9, bruit, luminances et que sais-je encore.<\/p>\n\n\n\n

Lightroom permet tout cela et plus encore : le classement des photographies et quelques retouches locales tr\u00e8s utiles, \u00e0 condition de ne pas en abuser.<\/p>\n\n\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

En photographie, l’action de transformer ses photographies avec un logiciel comme Lightroom ou Photoshop s\u2019appelle la retouche, pour ma part je lui pr\u00e9f\u00e8re le mot d\u00e9veloppement. Continuer la lecture →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":4548,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"image","meta":{"footnotes":""},"categories":[7],"tags":[684,683,1144,685],"class_list":["post-4542","post","type-post","status-publish","format-image","has-post-thumbnail","hentry","category-photo","tag-developpement","tag-lightroom","tag-logigiel","tag-retouche","post_format-post-format-image"],"yoast_head":"\nPhoto mattons - le d\u00e9veloppement - 5 - Le Blog du N\u00e9oprog<\/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.blog.neoprog.eu\/index.php\/2018\/12\/04\/photo-mattons-le-developpement-5\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Photo mattons - le d\u00e9veloppement - 5 - Le Blog du N\u00e9oprog\" \/>\n<meta property=\"og:description\" content=\"En photographie, l'action de transformer ses photographies avec un logiciel comme Lightroom ou Photoshop s\u2019appelle la retouche, pour ma part je lui pr\u00e9f\u00e8re le mot d\u00e9veloppement. 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