{"id":631440,"date":"2024-11-06T00:33:24","date_gmt":"2024-11-06T00:33:24","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/iso-cie-11664-42019-2\/"},"modified":"2024-11-06T00:33:24","modified_gmt":"2024-11-06T00:33:24","slug":"iso-cie-11664-42019-2","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/iso\/iso-cie-11664-42019-2\/","title":{"rendered":"ISO\/CIE 11664-4:2019"},"content":{"rendered":"<p>Le pr\u00e9sent document fixe une m\u00e9thode de calcul des coordonn\u00e9es de l&#039;espace chromatique L*a*b* CIE 1976 ainsi que des correspondants de clart\u00e9, de chroma et de teinte. Il donne deux m\u00e9thodes de calcul de la distance euclidienne dans cet espace, repr\u00e9sentant la valeur per\u00e7ue des diff\u00e9rences de couleur.<\/p>\n<p>Le pr\u00e9sent document est applicable aux composantes trichromatiques calcul\u00e9es en utilisant les fonctions colorim\u00e9triques du syst\u00e8me colorim\u00e9trique CIE 1931 normalis\u00e9 ou du syst\u00e8me colorim\u00e9trique CIE 1964 normalis\u00e9. Le pr\u00e9sent document peut \u00eatre utilis\u00e9 pour la sp\u00e9cification de stimulus de couleur se rapportant \u00e0 des objets qui r\u00e9fl\u00e9chissent ou qui transmettent la lumi\u00e8re, pour lesquels un espace chromatique tridimensionnel plus uniforme que le syst\u00e8me trichromatique est n\u00e9cessaire.<\/p>\n<p>Le pr\u00e9sent document ne s&#039;applique pas \u00e0 des stimulus de couleur se rapportant \u00e0 des surfaces qui paraissent \u00e9mettre de la lumi\u00e8re comme le font les sources primaires de lumi\u00e8re ou qui apparaissent r\u00e9fl\u00e9chir sp\u00e9culairement de telles lumi\u00e8res.<\/p>\n<p>Le pr\u00e9sent document est applicable aux afficheurs auto-lumineux, tels que des tubes cathodiques, quand ils sont utilis\u00e9s pour simuler des objets r\u00e9fl\u00e9chissants ou transparents, \u00e0 condition que les stimulus soient convenablement normalis\u00e9s.<\/p>\n<p>Le calcul de la transformation inverse est pr\u00e9sent\u00e9 dans l&#039;Annexe A.<\/p>\n","protected":false},"excerpt":{"rendered":"<p><b>Colorim\u00e9trie \u2014 Partie 4: Espace chromatique L*a*b* CIE 1976<\/b><\/p>\n<table style=\"width: 100%\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td>Published By<\/td>\n<td>Publication Date<\/td>\n<td>Number of Pages<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/pdfstandards.shop\/product-category\/publishers\/iso\/\"><b>ISO<\/b><\/a><\/td>\n<td>2019-06<\/td>\n<td>16<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":631452,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[275,2634],"product_tag":[],"class_list":{"0":"post-631440","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-17-180-20","7":"product_cat-iso","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/631440","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/631452"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=631440"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=631440"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=631440"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}