{"id":893,"date":"2014-03-04T00:07:33","date_gmt":"2014-03-03T23:07:33","guid":{"rendered":"http:\/\/www.proof.de\/?post_type=encyclopedia&p=893"},"modified":"2022-03-15T12:05:50","modified_gmt":"2022-03-15T11:05:50","slug":"metamerismus","status":"publish","type":"encyclopedia","link":"https:\/\/blog.proofs.de\/cs\/lexikon\/metamerie\/","title":{"rendered":"Metamerismus"},"content":{"rendered":"
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\n Hodnotit nyn\u00ed<\/span>\n <\/div>\n <\/div>\n

Term\u00edn metamerismus ozna\u010duje efekt, kdy dv\u011b v\u011bci mohou v jednom sv\u011btle vypadat stejn\u011b, ale v jin\u00e9m sv\u011btle zcela odli\u0161n\u011b.<\/p>\n

To lze velmi prakticky ilustrovat na p\u0159\u00edkladu: Pokud se na \u017elut\u00fd a b\u00edl\u00fd list pap\u00edru d\u00edv\u00e1me pod na\u017eloutl\u00fdm sv\u011btlem, oba vypadaj\u00ed stejn\u011b. Pokud se v\u0161ak na listy d\u00edv\u00e1me pod b\u00edl\u00fdm sv\u011btlem, je jeden list b\u00edl\u00fd a druh\u00fd \u017elut\u00fd, tedy zcela odli\u0161n\u011b barevn\u00fd.<\/p>\n

Tyto metamerick\u00e9 efekty mohou b\u00fdt obzvl\u00e1\u0161t\u011b v\u00fdrazn\u00e9, pokud se p\u0159i v\u00fdrob\u011b pou\u017e\u00edvaj\u00ed r\u016fzn\u00e9 barvy a postupy. \u0160ed\u00e1 barva D\u016fkazy<\/a> se \u010dasto vyr\u00e1b\u00ed z n\u011bkolika barev \u010dasto dvan\u00e1ctibarevn\u00e9ho materi\u00e1lu. D\u016fkaz<\/a>zat\u00edmco neutr\u00e1ln\u00ed \u0161ed\u00e1 v ofsetov\u00e9m tisku se skl\u00e1d\u00e1 pouze z \u010dern\u00e9 barvy. Riziko barevn\u00fdch posun\u016f je proto u n\u00e1tisk\u016f vy\u0161\u0161\u00ed ne\u017e u \u010dist\u011b \u010dern\u00e9ho tisku. K siln\u00e9mu metamerismu m\u016f\u017ee doj\u00edt tak\u00e9 p\u0159i porovn\u00e1v\u00e1n\u00ed barev st a v\u00fdtisk\u016f.<\/p>\n

D\u016fvodem metamerismu m\u016f\u017ee b\u00fdt tak\u00e9 osv\u011btlen\u00ed. Jeden na D50<\/a> Vyrovnan\u00fd n\u00e1tisk m\u016f\u017ee dokonale odpov\u00eddat tisku p\u0159i norm\u00e1ln\u00edm sv\u011btle D50, ale p\u0159i denn\u00edm sv\u011btle s vlivem UV z\u00e1\u0159en\u00ed nebo p\u0159i ve\u010dern\u00edm \u017e\u00e1rovkov\u00e9m sv\u011btle m\u016f\u017ee doj\u00edt k v\u00fdrazn\u00fdm odchylk\u00e1m, tj. metamerismu.<\/p>","protected":false},"excerpt":{"rendered":"

Term\u00edn metamerismus ozna\u010duje efekt, kdy dv\u011b v\u011bci mohou v jednom sv\u011btle vypadat stejn\u011b, ale v jin\u00e9m sv\u011btle zcela odli\u0161n\u011b.<\/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-893","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