{"id":1747,"date":"2017-01-11T01:26:22","date_gmt":"2017-01-11T00:26:22","guid":{"rendered":"http:\/\/www.proof.de\/?post_type=encyclopedia&p=1747"},"modified":"2024-12-11T01:23:58","modified_gmt":"2024-12-11T00:23:58","slug":"cat","status":"publish","type":"encyclopedia","link":"https:\/\/blog.proofs.de\/cs\/lexikon\/cat\/","title":{"rendered":"CAT"},"content":{"rendered":"
\n \n
\n \n
\n
\n \n\n
<\/div>\n <\/div>\n
\n \n\n
<\/div>\n <\/div>\n
\n \n\n
<\/div>\n <\/div>\n
\n \n\n
<\/div>\n <\/div>\n
\n \n\n
<\/div>\n <\/div>\n <\/div>\n \n
\n
\n \n\n
<\/div>\n <\/div>\n
\n \n\n
<\/div>\n <\/div>\n
\n \n\n
<\/div>\n <\/div>\n
\n \n\n
<\/div>\n <\/div>\n
\n \n\n
<\/div>\n <\/div>\n <\/div>\n<\/div>\n \n\n
\n Hodnotit nyn\u00ed<\/span>\n <\/div>\n <\/div>\n

CAT znamen\u00e1 Cromatic Adaptation Transform.<\/p>\n

Chromatick\u00e1 adaptace znamen\u00e1, \u017ee lidsk\u00e9 oko prov\u00e1d\u00ed automatick\u00e9 vyv\u00e1\u017een\u00ed b\u00edl\u00e9. Lidsk\u00fd pozorovatel tak vn\u00edm\u00e1 barvu zcela nez\u00e1visle na tom, jakou m\u00e1 Teplota barev<\/a> vn\u00edmal, b\u00edl\u00e1 ko\u0161ile se n\u00e1m objev\u00ed pod Neonov\u00e9 sv\u011btlo<\/a> b\u00edl\u00e1 jako p\u0159i \u017e\u00e1rovkov\u00e9m osv\u011btlen\u00ed, \u010derven\u00e1 r\u016f\u017ee je pro lidi p\u0159i obou sv\u011btlech podobn\u011b \u010derven\u00e1.<\/p>\n

Kromatick\u00e1 adapta\u010dn\u00ed transformace (CAT) je matematick\u00fd proces zpracov\u00e1n\u00ed barev, kter\u00fd simuluje adaptaci vn\u00edm\u00e1n\u00ed barev na r\u016fzn\u00e9 zdroje sv\u011btla. Je zalo\u017eena na p\u0159irozen\u00e9m jevu adaptace barev, kdy se lidsk\u00e9 oko p\u0159izp\u016fsobuje m\u011bn\u00edc\u00edm se sv\u011bteln\u00fdm podm\u00ednk\u00e1m, jak je pops\u00e1no v\u00fd\u0161e, aby mohlo vn\u00edmat barvy konzistentn\u011b. V digit\u00e1ln\u00edm zpracov\u00e1n\u00ed obrazu se CAT pou\u017e\u00edv\u00e1 k transformaci barev obrazu tak, aby se jevily jako konstantn\u00ed v r\u016fzn\u00fdch sv\u011bteln\u00fdch situac\u00edch, jako je p\u0159irozen\u00e9 nebo um\u011bl\u00e9 sv\u011btlo.<\/p>\n

CAT se pou\u017e\u00edv\u00e1 ve v\u011bd\u011b o barv\u00e1ch a p\u0159i zpracov\u00e1n\u00ed obrazu k harmonizaci barevn\u00e9ho pod\u00e1n\u00ed na r\u016fzn\u00fdch za\u0159\u00edzen\u00edch, jako jsou fotoapar\u00e1ty, monitory nebo tisk\u00e1rny, a k zaji\u0161t\u011bn\u00ed jednotn\u00e9ho vn\u00edm\u00e1n\u00ed barev. Za t\u00edmto \u00fa\u010delem se hodnoty barev p\u0159izp\u016fsobuj\u00ed pom\u011br\u016fm referen\u010dn\u00edho zdroje sv\u011btla, obvykle sv\u011btla Standardn\u00ed sv\u011btlo<\/a>laskav\u00fd D65<\/a>, na m\u00edru.<\/p>\n

Nejb\u011b\u017en\u011bj\u0161\u00ed modely CAT, nap\u0159\u00edklad Bradford\u016fv a von Kries\u016fv, pou\u017e\u00edvaj\u00ed k v\u00fdpo\u010dtu \u00fapravy sv\u011btla r\u016fzn\u00e9 matematick\u00e9 p\u0159\u00edstupy. Tento proces je d\u016fle\u017eit\u00fd zejm\u00e9na v digit\u00e1ln\u00ed fotografii, pro barevnou kalibraci za\u0159\u00edzen\u00ed a p\u0159i zpracov\u00e1n\u00ed obrazu, aby byla zaji\u0161t\u011bna p\u0159esn\u00e1 a konzistentn\u00ed reprodukce barev.<\/p>","protected":false},"excerpt":{"rendered":"

CAT znamen\u00e1 Cromatic Adaption Transform.<\/p>\n

Chromatick\u00e1 adaptace znamen\u00e1, \u017ee lidsk\u00e9 oko prov\u00e1d\u00ed automatick\u00e9 vyv\u00e1\u017een\u00ed b\u00edl\u00e9. Barva je tedy vn\u00edm\u00e1na zcela nez\u00e1visle na teplot\u011b barev. <\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","template":"","meta":{"om_disable_all_campaigns":false,"inline_featured_image":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"class_list":["post-1747","encyclopedia","type-encyclopedia","status-publish","hentry","no-featured-image-padding"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\n\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t