[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.drevostavbysittek.cz\/magicke-zelene-pozadi-meni-svet-filmu\/#Article","mainEntityOfPage":"https:\/\/www.drevostavbysittek.cz\/magicke-zelene-pozadi-meni-svet-filmu\/","headline":"MAGICK\u00c9 ZELEN\u00c9 POZAD\u00cd M\u011aN\u00cd SV\u011aT FILMU","name":"MAGICK\u00c9 ZELEN\u00c9 POZAD\u00cd M\u011aN\u00cd SV\u011aT FILMU","description":"Ve filmech a v televizi chod\u00ed herci, a n\u011bkdy i let\u00ed, skrze komplikovanou a fantastickou krajinu, kter\u00e1 prost\u011b neexistuje v re\u00e1ln\u00e9m sv\u011bt\u011b. Jsou na z\u00e1dech drak\u016f, p\u011bstuj\u00ed plodiny na vzd\u00e1len\u00fdch planet\u00e1ch nebo nav\u0161t\u011bvuj\u00ed kouzeln\u00e9 \u0159\u00ed\u0161e s mohutn\u00fdmi citadely ob\u00fdvan\u00fdmi bizarn\u00edmi stvo\u0159en\u00edmi. N\u011bkdy se p\u0159\u00edb\u011bh odehr\u00e1v\u00e1 ve zn\u00e1m\u00e9m m\u011bst\u011b, ale ve vzd\u00e1len\u00e9 minulosti – nebo vzd\u00e1len\u00e9 […]","datePublished":"2023-05-06","dateModified":"2023-05-06","author":{"@type":"Person","@id":"https:\/\/www.drevostavbysittek.cz\/author\/devene\/#Person","name":"devene","url":"https:\/\/www.drevostavbysittek.cz\/author\/devene\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/1bbb35219ad819cefa53fdc5515b24173b84f885da520bcb5e2dcb96444d797b?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/1bbb35219ad819cefa53fdc5515b24173b84f885da520bcb5e2dcb96444d797b?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"drevostavbysittek.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/www.drevostavbysittek.cz\/wp-content\/uploads\/img_a293668_w2315_t1505849254.jpg","url":"https:\/\/www.drevostavbysittek.cz\/wp-content\/uploads\/img_a293668_w2315_t1505849254.jpg","height":0,"width":0},"url":"https:\/\/www.drevostavbysittek.cz\/magicke-zelene-pozadi-meni-svet-filmu\/","wordCount":442,"articleBody":"Ve filmech a v televizi chod\u00ed herci, a n\u011bkdy i let\u00ed, skrze komplikovanou a fantastickou krajinu, kter\u00e1 prost\u011b neexistuje v re\u00e1ln\u00e9m sv\u011bt\u011b. Jsou na z\u00e1dech drak\u016f, p\u011bstuj\u00ed plodiny na vzd\u00e1len\u00fdch planet\u00e1ch nebo nav\u0161t\u011bvuj\u00ed kouzeln\u00e9 \u0159\u00ed\u0161e s mohutn\u00fdmi citadely ob\u00fdvan\u00fdmi bizarn\u00edmi stvo\u0159en\u00edmi. N\u011bkdy se p\u0159\u00edb\u011bh odehr\u00e1v\u00e1 ve zn\u00e1m\u00e9m m\u011bst\u011b, ale ve vzd\u00e1len\u00e9 minulosti – nebo vzd\u00e1len\u00e9 budoucnosti. N\u011bkdy postavy bojuj\u00ed ve velk\u00fdch bitv\u00e1ch a n\u011bkdy se samotn\u00e9 postavy fyzicky p\u0159em\u011b\u0148uj\u00ed nebo vzdoruj\u00ed z\u00e1kon\u016fm gravitace.\u00a0V\u0161echno toto high-tech klam\u00e1n\u00ed se d\u011bje s pomoc\u00ed pozad\u00ed z\u00e1\u0159iv\u011b zbarven\u00e9 tkaniny nebo barvy a procesem nazvan\u00fdm jako zelen\u00e1 obrazovka kv\u016fli kulis\u00e1m z\u00e1kulis\u00ed, kter\u00e9 jsou typicky z\u00e1\u0159iv\u011b zelen\u00e9 .\u00a0Zelen\u00e1 obrazovkaumo\u017e\u0148uje medi\u00e1ln\u00edm technik\u016fm snadno odd\u011blit zelen\u00e9 obrazy a panely p\u0159ed lidmi, kte\u0159\u00ed stoj\u00ed p\u0159ed nimi, a nahradit pozad\u00ed s \u010d\u00edmkoli – od animovan\u00fdch map po\u010das\u00ed a\u017e po panorama New Yorku z 30. let, a\u017e po ledovou ze\u010f st\u0159e\u017eenou No\u010dn\u00ed hl\u00eddkou v hitu\u00a0 Hra o tr\u016fny.\u00a0Proces zaznamen\u00e1v\u00e1 ji\u017e nahran\u00e9 video (nebo digit\u00e1ln\u011b p\u0159enesen\u00fd film), \u017eiv\u00e9 video nebo po\u010d\u00edta\u010dov\u00fd v\u00fdstup a izoluje a odstra\u0148uje jednu barvu v \u00fazce definovan\u00e9 oblasti spektra. Barva je obvykle jasn\u011b zelen\u00e1 nebo jasn\u011b modr\u00e1, proto\u017ee tyto odst\u00edny se velmi li\u0161\u00ed od t\u00f3n\u016f lidsk\u00e9 poko\u017eky a obvykle se nenach\u00e1zej\u00ed v oble\u010den\u00ed.\u00a0Pro efektivn\u00ed pr\u00e1ci mus\u00ed b\u00fdt zelen\u00e9 plochy rovnom\u011brn\u011b osv\u011btlen\u00e9 a bez viditeln\u00fdch st\u00edn\u016f. Jakmile jsou zelen\u00e9 obrazovky identifikov\u00e1ny a digit\u00e1ln\u011b odstran\u011bny, m\u016f\u017ee se p\u0159idat n\u011bco zp\u011bt, zat\u00edmco \u010d\u00e1sti p\u016fvodn\u00edho obrazu, kter\u00e9 nejsou zelen\u00e9, z\u016fst\u00e1vaj\u00ed nedot\u010deny. Zelen\u00e1 obrazovka pro \u017eiv\u00e9 zdroje vy\u017eaduje hardware, kter\u00fd dok\u00e1\u017ee rozpoznat a manipulovat s v\u00edce kamerami – vrstvami definovan\u00fdmi barvou,\u00a0 zat\u00edmco zaznamenan\u00fd materi\u00e1l lze v postprodukci m\u011bnit pomoc\u00ed softwaru pro \u00fapravu videa nebo \u00fapravu fotografi\u00ed.\u00a0B\u011bhem desetilet\u00ed se tato technologie stala citliv\u011bj\u0161\u00ed a sofistikovan\u011bj\u0161\u00ed. Vylep\u0161en\u00e1 detekce okraj\u016f a schopnost odd\u011blit dokonce jednotliv\u00e9 vlasy na hlav\u00e1ch herc\u016f v pop\u0159ed\u00ed ze zelen\u00e9ho pozad\u00ed d\u011blaj\u00ed integraci \u017eiv\u00e9 akce s velkolep\u00fdmi efekty v\u00edce hladkou a realistickou ne\u017e kdy p\u0159edt\u00edm.\u00a0Sou\u010dasn\u011b se digit\u00e1ln\u00ed technologie tak\u00e9 st\u00e1vaj\u00ed levn\u011bj\u0161\u00edmi a p\u0159\u00edstupn\u011bj\u0161\u00edmi a je nyn\u00ed dostupn\u00e1 pro ka\u017ed\u00e9ho, kdo m\u00e1 smartphone nebo tablet.                                                                                                                                                                                                                                                                                                                                                                                        4.4\/5 - (8 votes)        "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"MAGICK\u00c9 ZELEN\u00c9 POZAD\u00cd M\u011aN\u00cd SV\u011aT FILMU","item":"https:\/\/www.drevostavbysittek.cz\/magicke-zelene-pozadi-meni-svet-filmu\/#breadcrumbitem"}]}]