{"id":1,"date":"2023-01-18T08:18:16","date_gmt":"2023-01-18T08:18:16","guid":{"rendered":"https:\/\/histogram.cz\/?p=1"},"modified":"2024-01-06T22:46:09","modified_gmt":"2024-01-06T22:46:09","slug":"co-je-to-histogram-a-proc-ho-pouzivaji-v-postprodukci-odpovidame-strucne-a-jasne","status":"publish","type":"post","link":"https:\/\/histogram.cz\/co-je-to-histogram-a-proc-ho-pouzivaji-v-postprodukci-odpovidame-strucne-a-jasne\/","title":{"rendered":"Co je to histogram? A pro\u010d ho pou\u017e\u00edvaj\u00ed v postprodukci? Odpov\u00edd\u00e1me stru\u010dn\u011b a jasn\u011b"},"content":{"rendered":"\n

Histogram je \u2013 krom\u011b n\u00e1zvu na\u0161\u00ed spole\u010dnosti \u2013 zejm\u00e9na grafick\u00fd zp\u016fsob zobrazov\u00e1n\u00ed rozlo\u017een\u00ed jasu v obraze nebo videu. Pou\u017e\u00edv\u00e1 se v postprodukci fotografi\u00ed a videa k \u00faprav\u011b kontrastu a jasu obrazu. Histogram ukazuje, jak je rozlo\u017een jas v obraze, a pom\u00e1h\u00e1 tak fotograf\u016fm a st\u0159iha\u010d\u016fm vid\u011bt, zda jsou v obraze p\u0159\u00edli\u0161 tmav\u00e9 nebo sv\u011btl\u00e9 oblasti. Pomoc\u00ed histogramu mohou upravit jas tak, aby byl obraz co nejl\u00e9pe vyv\u00e1\u017een\u00fd a aby se zlep\u0161il kontrast.<\/p>\n\n\n\n

Pom\u00e1h\u00e1 tak\u00e9 fotograf\u016fm a st\u0159iha\u010d\u016fm udr\u017eet si kontrolu nad dynamick\u00fdm rozsahem (dynamic range) obrazu, co\u017e je rozd\u00edl mezi nejtmav\u0161\u00edmi a nejsv\u011btlej\u0161\u00edmi \u010d\u00e1stmi obrazu. D\u00edky histogramu mohou fotografov\u00e9 a st\u0159iha\u010di udr\u017eet co nejv\u011bt\u0161\u00ed mno\u017estv\u00ed detail\u016f v t\u011bchto nejtmav\u0161\u00edch a nejsv\u011btlej\u0161\u00edch \u010d\u00e1stech obrazu. Kdy\u017e jsou v obraze p\u0159\u00edli\u0161 tmav\u00e9 nebo sv\u011btl\u00e9 oblasti, m\u016f\u017ee to v\u00e9st k ztr\u00e1t\u011b detail\u016f v t\u011bchto oblastech. Histogram umo\u017e\u0148uje fotograf\u016fm a st\u0159iha\u010d\u016fm vid\u011bt, kde se nach\u00e1z\u00ed tyto oblasti a upravit je tak, aby se zachovalo co nejv\u00edce detail\u016f.<\/p>\n\n\n\n

Nezapome\u0148te, \u017ee histogram nen\u00ed jedin\u00fdm n\u00e1strojem pro \u00fapravu jasu a kontrastu v postprodukci. Je ale velmi roz\u0161\u00ed\u0159en\u00fdm ukazatelem, kter\u00fd najdete v ka\u017ed\u00e9m lep\u0161\u00edm grafick\u00e9m programu.<\/p>\n","protected":false},"excerpt":{"rendered":"

Zaj\u00edm\u00e1 v\u00e1s, co je to histogram, kde se pou\u017e\u00edv\u00e1 a co v\u0161echno ukazuje? P\u0159e\u010dt\u011bte si \u010dl\u00e1nek, kter\u00fd v\u00e1m d\u00e1 rychl\u00e9 odpov\u011bdi na tuto \u010dasto googlovanou ot\u00e1zku.<\/p>\n","protected":false},"author":1,"featured_media":94,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"ghostkit_customizer_options":"","ghostkit_custom_css":"","ghostkit_custom_js_head":"","ghostkit_custom_js_foot":"","ghostkit_typography":"","footnotes":""},"categories":[6],"tags":[],"yoast_head":"\nCo je to histogram? A pro\u010d ho pou\u017e\u00edvaj\u00ed v postprodukci? 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