{"id":2747,"date":"2017-05-22T13:23:45","date_gmt":"2017-05-22T13:23:45","guid":{"rendered":"https:\/\/www.photoweb.fr\/espaces\/magazine\/magazine\/?p=2747"},"modified":"2022-05-24T14:05:43","modified_gmt":"2022-05-24T14:05:43","slug":"la-compression-jpeg","status":"publish","type":"post","link":"https:\/\/www.photoweb.fr\/espaces\/magazine\/la-compression-jpeg\/","title":{"rendered":"Compresser JPEG : R\u00e9duire la taille de vos images JPEG !"},"content":{"rendered":"<p>Les images enregistr\u00e9es pixel par pixel (Bitmap, Tiff&#8230; ) peuvent \u00eatre tr\u00e8s encombrantes. Cela pose un probl\u00e8me de volume occup\u00e9 en m\u00e9moire, ainsi que des difficult\u00e9s lors de la cr\u00e9ation de produits photo comme <a href=\"https:\/\/www.photoweb.fr\/livre-photo\/listing\">un livre photo<\/a> ou la <a href=\"https:\/\/www.photoweb.fr\/produits\/tirage-photo\">commande de tirages photo<\/a>. La solution&#8230; Compresser vos images au format JPEG  pour r\u00e9duire la taille de vos photos !<\/p>\n<h2>Comment r\u00e9duire le poids d&rsquo;une image JPEG ?<\/h2>\n<p>Pour r\u00e9duire la taille de vos photos, on utilise divers algorithmes de compression et donc diff\u00e9rents formats de stockage. <strong>Le format de stockage le plus utilis\u00e9 est le Jpeg (JPG)<\/strong> car celui-ci <strong>pr\u00e9serve au mieux la qualit\u00e9 de l&rsquo;image apr\u00e8s compression.<\/strong><\/p>\n<p>En utilisant un logiciel de retouche photo tel que <a href=\"https:\/\/www.adobe.com\/fr\/products\/photoshop.html\" class=\"broken_link\">Photoshop<\/a>, vous pouvez compresser vos images au format JPEG sur des niveaux de compression allant de 1 \u00e0 12:<\/p>\n<ul>\n<li>Le niveau 1 repr\u00e9sentant le niveau de compression maximal (poids faible &amp; qualit\u00e9 m\u00e9diocre),<\/li>\n<li>Le niveau 12 \u00e9tant le niveau de compression minimal (poids important &amp; qualit\u00e9 bonne).<\/li>\n<\/ul>\n<p>Pour une optimisation optimale de votre image (qualit\u00e9 et poids), nous vous conseillons de <strong>compresser vos image en choisissant un niveau entre 8 et 10.<\/strong><\/p>\n<p>&nbsp;<\/p>\n<h2>Compresser JPEG : Recommandations et avertissements&#8230;<\/h2>\n<p><strong>Attention :<\/strong> Les compresser ses images successivement, \u00e0 un niveau donn\u00e9, sont plus destructrices qu&rsquo;une seule compression \u00e0 ce m\u00eame niveau. Par exemple, les effets d&rsquo;une seule compression JPEG \u00e0 un niveau 9 seront peu visibles, mais ils le deviendront si cette image est compress\u00e9e au format JPEG plusieurs fois avec ce m\u00eame indice.<\/p>\n<p><strong>A savoir :<\/strong> La perte de qualit\u00e9 d&rsquo;une image compress\u00e9e est irr\u00e9m\u00e9diable si le fichier d&rsquo;origine n&rsquo;a pas \u00e9t\u00e9 sauvegard\u00e9 ! Nous vous conseillons donc de veiller \u00e0 enregistrer votre image avant de la compresser au format JPEG !<\/p>\n<p>1.2.3.<br \/>\nimprimez\u202f!<\/p>\n<p><a href=\"https:\/\/www.photoweb.fr\/produits\/tirage-photo\" target=\"_blank\" rel=\"noopener\"><br \/>\n<img loading=\"lazy\" decoding=\"async\" title=\"tirages carre photoweb\" src=\"https:\/\/www.photoweb.fr\/espaces\/magazine\/wp-content\/uploads\/2017\/06\/tirages-carre-photoweb.jpg\" alt=\"tirages carre photoweb\" width=\"600\" height=\"600\" \/><br \/>\n<\/a><br \/>\n<a href=\"https:\/\/www.photoweb.fr\/produits\/tirage-photo\"><br \/>\nimprimer mes photos<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Les images enregistr\u00e9es pixel par pixel (Bitmap, Tiff&#8230; ) peuvent \u00eatre tr\u00e8s encombrantes. Cela pose un probl\u00e8me de volume occup\u00e9 en m\u00e9moire, ainsi que des difficult\u00e9s lors de la cr\u00e9ation de produits photo comme un livre photo ou la commande de tirages photo. La solution&#8230; Compresser vos images au format JPEG pour r\u00e9duire la taille&hellip;<\/p>\n","protected":false},"author":6,"featured_media":3796,"comment_status":"closed","ping_status":"open","sticky":false,"template":"single-standard.php","format":"standard","meta":{"footnotes":""},"categories":[91],"tags":[92],"class_list":["post-2747","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-aide","tag-modifier-photo"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Compresser JPEG : R\u00e9duire le poids de vos images JPEG<\/title>\n<meta name=\"description\" content=\"Lorsque qu&#039;on souhaite utiliser ses photos dans un projet cr\u00e9atif en ligne, la compression JPEG est tr\u00e8s souvent privil\u00e9gi\u00e9e ! D\u00e9couvrez-en les raisons...\" \/>\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.photoweb.fr\/espaces\/magazine\/la-compression-jpeg\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Compresser JPEG : R\u00e9duire le poids de vos images JPEG\" \/>\n<meta property=\"og:description\" content=\"Lorsque qu&#039;on souhaite utiliser ses photos dans un projet cr\u00e9atif en ligne, la compression JPEG est tr\u00e8s souvent privil\u00e9gi\u00e9e ! D\u00e9couvrez-en les raisons...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.photoweb.fr\/espaces\/magazine\/la-compression-jpeg\/\" \/>\n<meta property=\"og:site_name\" content=\"Photoweb, le mag\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/fr-fr.facebook.com\/Photoweb.fr\/\" \/>\n<meta property=\"article:published_time\" content=\"2017-05-22T13:23:45+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-05-24T14:05:43+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.photoweb.fr\/espaces\/magazine\/wp-content\/uploads\/2017\/05\/compression-JPEG.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"800\" \/>\n\t<meta property=\"og:image:height\" content=\"600\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Maud\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@Photoweb_fr\" \/>\n<meta name=\"twitter:site\" content=\"@Photoweb_fr\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Maud\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.photoweb.fr\/espaces\/magazine\/la-compression-jpeg\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.photoweb.fr\/espaces\/magazine\/la-compression-jpeg\/\"},\"author\":{\"name\":\"Maud\",\"@id\":\"https:\/\/www.photoweb.fr\/espaces\/magazine\/#\/schema\/person\/f354e6bd2302e567e1329fa54e90ff15\"},\"headline\":\"Compresser JPEG : R\u00e9duire la taille de vos images JPEG !\",\"datePublished\":\"2017-05-22T13:23:45+00:00\",\"dateModified\":\"2022-05-24T14:05:43+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.photoweb.fr\/espaces\/magazine\/la-compression-jpeg\/\"},\"wordCount\":303,\"publisher\":{\"@id\":\"https:\/\/www.photoweb.fr\/espaces\/magazine\/#organization\"},\"keywords\":[\"Modifier photo\"],\"articleSection\":[\"Aide\"],\"inLanguage\":\"fr-FR\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.photoweb.fr\/espaces\/magazine\/la-compression-jpeg\/\",\"url\":\"https:\/\/www.photoweb.fr\/espaces\/magazine\/la-compression-jpeg\/\",\"name\":\"Compresser JPEG : R\u00e9duire le poids de vos images JPEG\",\"isPartOf\":{\"@id\":\"https:\/\/www.photoweb.fr\/espaces\/magazine\/#website\"},\"datePublished\":\"2017-05-22T13:23:45+00:00\",\"dateModified\":\"2022-05-24T14:05:43+00:00\",\"description\":\"Lorsque qu'on souhaite utiliser ses photos dans un projet cr\u00e9atif en ligne, la compression JPEG est tr\u00e8s souvent privil\u00e9gi\u00e9e ! 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