{"id":9471,"date":"2023-08-25T00:00:00","date_gmt":"2023-08-25T00:00:00","guid":{"rendered":"https:\/\/tech-lib.eu\/tech\/understanding-how-white-balance-works\/"},"modified":"2023-08-25T00:00:00","modified_gmt":"2023-08-25T00:00:00","slug":"understanding-how-white-balance-works","status":"publish","type":"post","link":"https:\/\/tech-lib.eu\/tech\/understanding-how-white-balance-works\/","title":{"rendered":"Understanding How White Balance Works"},"content":{"rendered":"<div class=\"orig\">\n<div class=\"origqestion\">Jak nastavit vyv\u00e1\u017een\u00ed b\u00edl\u00e9?<\/div>\n<div class=\"origanswer\">Z\u00e1kladn\u00ed a nejjednodu\u0161\u0161\u00ed mo\u017enost, jak nastavit vyv\u00e1\u017een\u00ed b\u00edl\u00e9, je pou\u017eit\u00ed p\u0159edvoleb, kter\u00e9 pro v\u00e1s p\u0159ipravil v\u00fdrobce fotoapar\u00e1tu. Standardn\u011b b\u00fdv\u00e1 k dispozici mo\u017enost nastavit vyv\u00e1\u017een\u00ed b\u00edl\u00e9 na denn\u00ed sv\u011btlo (daylight), zata\u017eeno (cloudy), st\u00edn (shadow), \u017e\u00e1rovka (tungsten), z\u00e1\u0159ivka (fluorescent) a z\u00e1blesk (flash). <\/div>\n<div class=\"origurl\">\n\t\t\t\t\t<span> Dal\u0161\u00ed informace najdete na<\/span> <a href=\"https:\/\/www.milujemefotografii.cz\/ovladnete-barvy-fotografie-vyvazeni-bile#:~:text=Z%C3%A1kladn%C3%AD%20a%20nejjednodu%C5%A1%C5%A1%C3%AD%20mo%C5%BEnost%2C%20jak,)%20a%20z%C3%A1blesk%20(flash).\">www.milujemefotografii.cz<\/a>\n\t\t\t\t<\/div>\n<\/p><\/div>\n<div class=\"articlecontent\">\n<div class=\"newlinediv\"><\/div>\n<p> Mnoho za\u010d\u00ednaj\u00edc\u00edch fotograf\u016f \u010dasto p\u0159ehl\u00ed\u017e\u00ed d\u016fle\u017eitost vyv\u00e1\u017een\u00ed b\u00edl\u00e9 barvy na sn\u00edmku. Je v\u0161ak nezbytn\u00e9 pro zaji\u0161t\u011bn\u00ed v\u011brn\u00fdch a realistick\u00fdch barev na fotografi\u00edch. Vyv\u00e1\u017een\u00ed b\u00edl\u00e9 je proces nastaven\u00ed barev na fotografii tak, aby bez ohledu na osv\u011btlen\u00ed vypadaly b\u00edl\u00e9 barvy skute\u010dn\u011b b\u00edl\u00e9. Tato korekce je nutn\u00e1, proto\u017ee barevn\u00e9 teploty vyza\u0159ovan\u00e9 r\u016fzn\u00fdmi zdroji sv\u011btla mohou zm\u011bnit celkov\u00e9 barevn\u00e9 pod\u00e1n\u00ed sn\u00edmku. V tomto \u010dl\u00e1nku se budeme zab\u00fdvat fungov\u00e1n\u00edm vyv\u00e1\u017een\u00ed b\u00edl\u00e9, jeho v\u00fdznamem a n\u011bkter\u00fdmi \u010dasto kladen\u00fdmi ot\u00e1zkami t\u00fdkaj\u00edc\u00edmi se t\u00e9to funkce. <\/p>\n<div class=\"title\"> Je pou\u017eit\u00ed automatick\u00e9ho vyv\u00e1\u017een\u00ed b\u00edl\u00e9 p\u0159ijateln\u00e9? <\/div>\n<p> Nastaven\u00ed automatick\u00e9ho vyv\u00e1\u017een\u00ed b\u00edl\u00e9 (AWB) ve fotoapar\u00e1tu je vytvo\u0159eno tak, aby automaticky m\u011bnilo vyv\u00e1\u017een\u00ed b\u00edl\u00e9 v z\u00e1vislosti na osv\u011btlen\u00ed. I kdy\u017e m\u016f\u017ee b\u00fdt za ur\u010dit\u00fdch okolnost\u00ed praktick\u00e9, nemus\u00ed v\u017edy p\u0159in\u00e9st spolehliv\u00e9 v\u00fdsledky. K vyhodnocen\u00ed sc\u00e9ny a proveden\u00ed pot\u0159ebn\u00fdch \u00faprav pou\u017e\u00edv\u00e1 AWB fotoapar\u00e1tu algoritmy. Tyto algoritmy nemus\u00ed b\u00fdt ide\u00e1ln\u00ed a ob\u010das mohou nespr\u00e1vn\u011b ode\u010d\u00edst okolnosti osv\u011btlen\u00ed, co\u017e m\u00e1 za n\u00e1sledek nep\u0159esnou reprodukci barev. Za okolnost\u00ed, kdy je p\u0159esnost barev z\u00e1sadn\u00ed, nap\u0159\u00edklad p\u0159i profesion\u00e1ln\u00ed fotografii nebo p\u0159i fotografov\u00e1n\u00ed v obt\u00ed\u017en\u00fdch sv\u011bteln\u00fdch podm\u00ednk\u00e1ch, se doporu\u010duje pou\u017e\u00edt manu\u00e1ln\u00ed vyv\u00e1\u017een\u00ed b\u00edl\u00e9 nebo p\u0159ednastaven\u00e9 nastaven\u00ed vyv\u00e1\u017een\u00ed b\u00edl\u00e9. Co se stane, kdy\u017e je vyv\u00e1\u017een\u00ed b\u00edl\u00e9 vypnut\u00e9? <\/p>\n<div class=\"newlinediv\"><\/div>\n<p> Pokud je vyv\u00e1\u017een\u00ed b\u00edl\u00e9 \u0161patn\u00e9, mohou se barvy na sn\u00edmku zd\u00e1t zkreslen\u00e9 nebo podivn\u00e9. Pokud nap\u0159\u00edklad fotografujete p\u0159i z\u00e1\u0159ivkov\u00e9m osv\u011btlen\u00ed bez korekce vyv\u00e1\u017een\u00ed b\u00edl\u00e9, mohou m\u00edt va\u0161e fotografie nazelenal\u00fd n\u00e1dech. Podobn\u011b p\u0159i fotografov\u00e1n\u00ed v interi\u00e9ru p\u0159i \u017e\u00e1rovkov\u00e9m osv\u011btlen\u00ed bez \u00fapravy vyv\u00e1\u017een\u00ed b\u00edl\u00e9 mohou vzniknout fotografie se \u017elutav\u00fdm n\u00e1dechem. Krom\u011b toho m\u016f\u017ee m\u00edt nespr\u00e1vn\u00e9 vyv\u00e1\u017een\u00ed b\u00edl\u00e9 barvy nep\u0159\u00edjemn\u00fd nebo nep\u0159irozen\u00fd \u00fa\u010dinek na ple\u0165ov\u00e9 t\u00f3ny. Pro zachov\u00e1n\u00ed spr\u00e1vn\u00fdch barev a zachycen\u00ed skute\u010dn\u00e9ho ducha sn\u00edmku je z\u00e1sadn\u00ed stanovit spr\u00e1vn\u00e9 vyv\u00e1\u017een\u00ed b\u00edl\u00e9. Jak \u010dasto by m\u011bl fotoapar\u00e1t prov\u00e1d\u011bt vyv\u00e1\u017een\u00ed b\u00edl\u00e9 barvy? <\/p>\n<div class=\"newlinediv\"><\/div>\n<p> \u010cetnost vyv\u00e1\u017een\u00ed b\u00edl\u00e9 barvy fotoapar\u00e1tu z\u00e1vis\u00ed na \u0159ad\u011b prom\u011bnn\u00fdch, v\u010detn\u011b osv\u011btlen\u00ed a druhu fotografov\u00e1n\u00ed. Pokud je osv\u011btlen\u00ed konstantn\u00ed, m\u016f\u017ee b\u00fdt nutn\u00e9 vyv\u00e1\u017een\u00ed b\u00edl\u00e9 nastavit pouze jednou, a to na za\u010d\u00e1tku fotografov\u00e1n\u00ed. Pokud se v\u0161ak vyd\u00e1te do jin\u00e9 oblasti s m\u011bn\u00edc\u00edmi se sv\u011bteln\u00fdmi podm\u00ednkami, je nezbytn\u00e9 vyv\u00e1\u017een\u00ed b\u00edl\u00e9 p\u0159ehodnotit a zm\u011bnit. Krom\u011b toho m\u016f\u017ee b\u00fdt \u010dast\u011bj\u0161\u00ed nastaven\u00ed vyv\u00e1\u017een\u00ed b\u00edl\u00e9 nutn\u00e9 k dosa\u017een\u00ed p\u0159esn\u00fdch barev p\u0159i fotografov\u00e1n\u00ed v situac\u00edch se sm\u00ed\u0161en\u00fdm osv\u011btlen\u00edm nebo p\u0159i \u010dast\u00fdch zm\u011bn\u00e1ch osv\u011btlen\u00ed. <\/p>\n<div class=\"title\"> Jak\u00e9 nastaven\u00ed vyv\u00e1\u017een\u00ed b\u00edl\u00e9 je ide\u00e1ln\u00ed pro zamra\u010den\u00fd den? <\/div>\n<p> Zata\u017een\u00e9 dny maj\u00ed obvykle chladn\u011bj\u0161\u00ed osv\u011btlen\u00ed s namodral\u00fdm n\u00e1dechem. P\u0159edvolba &#8222;Zata\u017eeno&#8220; nebo &#8222;St\u00edn&#8220; je obvykle nejlep\u0161\u00edm nastaven\u00edm vyv\u00e1\u017een\u00ed b\u00edl\u00e9, kter\u00e9 lze pou\u017e\u00edt k vyrovn\u00e1n\u00ed tohoto jevu. Tyto mo\u017enosti zvy\u0161uj\u00ed teplotu obrazu, co\u017e pom\u00e1h\u00e1 kompenzovat namodral\u00fd n\u00e1dech a vytv\u00e1\u0159et barvy, kter\u00e9 vypadaj\u00ed realisti\u010dt\u011bji. Chcete-li dos\u00e1hnout ide\u00e1ln\u00edho v\u00fdsledku a p\u0159izp\u016fsobit sn\u00edmky n\u00e1lad\u011b nebo atmosf\u00e9\u0159e, kterou chcete zachytit, je v\u017edy dobr\u00e9 experimentovat s r\u016fzn\u00fdmi nastaven\u00edmi vyv\u00e1\u017een\u00ed b\u00edl\u00e9. <\/p>\n<div class=\"newlinediv\"><\/div>\n<p> Z\u00e1v\u011brem lze \u0159\u00edci, \u017ee zachycen\u00ed spr\u00e1vn\u00fdch a realistick\u00fdch barev na sn\u00edmc\u00edch vy\u017eaduje pochopen\u00ed fungov\u00e1n\u00ed vyv\u00e1\u017een\u00ed b\u00edl\u00e9 barvy. P\u0159esto\u017ee automatick\u00e9 vyv\u00e1\u017een\u00ed b\u00edl\u00e9 m\u016f\u017ee b\u00fdt praktick\u00e9, v\u00fdsledky nemus\u00ed v\u017edy odpov\u00eddat va\u0161im p\u0159edstav\u00e1m. Bez ohledu na sv\u011btelnou situaci v\u00e1m m\u016f\u017ee ru\u010dn\u00ed nastaven\u00ed vyv\u00e1\u017een\u00ed b\u00edl\u00e9 nebo pou\u017eit\u00ed p\u0159ednastaven\u00fdch nastaven\u00ed vyv\u00e1\u017een\u00ed b\u00edl\u00e9 pomoci zachytit skute\u010dn\u00e9 odst\u00edny sc\u00e9ny. Pozornost\u00ed v\u011bnovanou vyv\u00e1\u017een\u00ed b\u00edl\u00e9 a proveden\u00edm pot\u0159ebn\u00fdch \u00faprav m\u016f\u017eete zlep\u0161it celkovou kvalitu a p\u016fsobivost sv\u00fdch fotografi\u00ed.<\/p><\/div>\n<div class=\"questions\">\n<div class=\"questionstitle\">FAQ<\/div>\n<div class=\"question\">\n<div class=\"qtitle\"> Jak\u00e9 je nejlep\u0161\u00ed vyv\u00e1\u017een\u00ed b\u00edl\u00e9 pro slune\u010dn\u00e9 dny?<\/div>\n<p> P\u0159edvolba &#8222;Denn\u00ed sv\u011btlo&#8220; nebo &#8222;Slune\u010dno&#8220; je \u010dasto ide\u00e1ln\u00ed mo\u017enost\u00ed vyv\u00e1\u017een\u00ed b\u00edl\u00e9 pro slune\u010dn\u00e9 dny. Tato mo\u017enost pom\u00e1h\u00e1 \u00fa\u010dinn\u011b zachytit \u017eiv\u00e9 barvy sc\u00e9ny a p\u0159irozen\u00e9 osv\u011btlen\u00ed na p\u0159\u00edm\u00e9m slunci. <\/p>\n<\/div>\n<div class=\"question\">\n<div class=\"qtitle\"> M\u011bli byste vyv\u00e1\u017eit b\u00edlou barvu u ka\u017ed\u00e9ho sn\u00edmku?<\/div>\n<p> V z\u00e1vislosti na jedine\u010dn\u00fdch okolnostech a preferenc\u00edch fotografa m\u016f\u017ee, ale nemus\u00ed b\u00fdt ka\u017ed\u00fd sn\u00edmek vyv\u00e1\u017een b\u00edlou barvou. Technika zm\u011bny barev fotografie tak, aby v\u011brn\u011b zachycovala skute\u010dn\u00e9 odst\u00edny sc\u00e9ny, se naz\u00fdv\u00e1 vyv\u00e1\u017een\u00ed b\u00edl\u00e9. Proto\u017ee r\u016fzn\u00e9 zdroje sv\u011btla mohou vytv\u00e1\u0159et odli\u0161n\u00e9 barevn\u00e9 odst\u00edny, je to d\u016fle\u017eit\u00e9 zejm\u00e9na p\u0159i fotografov\u00e1n\u00ed v r\u016fzn\u00fdch sv\u011bteln\u00fdch situac\u00edch. <\/p>\n<div class=\"newlinediv\"><\/div>\n<p> Vyv\u00e1\u017een\u00ed b\u00edl\u00e9 barvy pouze jednou na za\u010d\u00e1tku sn\u00edmku m\u016f\u017ee b\u00fdt dosta\u010duj\u00edc\u00ed, pokud osv\u011btlen\u00ed z\u016fst\u00e1v\u00e1 konstantn\u00ed. P\u0159i pou\u017eit\u00ed sad um\u011bl\u00e9ho osv\u011btlen\u00ed nebo p\u0159i fotografov\u00e1n\u00ed ve studiu, kde je teplota barev konstantn\u00ed, tomu tak \u010dasto je. <\/p>\n<div class=\"newlinediv\"><\/div>\n<p> Obvykle se v\u0161ak doporu\u010duje vyv\u00e1\u017eit b\u00edlou barvu p\u0159i ka\u017ed\u00e9m sn\u00edmku za okolnost\u00ed, kdy se sv\u011bteln\u00e9 podm\u00ednky \u010dasto m\u011bn\u00ed, nebo p\u0159i nat\u00e1\u010den\u00ed v exteri\u00e9ru, kde se p\u0159irozen\u00e9 osv\u011btlen\u00ed m\u016f\u017ee m\u011bnit. V\u00fdsledkem je men\u0161\u00ed pot\u0159eba dodate\u010dn\u00fdch \u00faprav a zaru\u010den\u00e9 spr\u00e1vn\u00e9 zobrazen\u00ed barev. <\/p>\n<div class=\"newlinediv\"><\/div>\n<p> Volba vyv\u00e1\u017een\u00ed b\u00edl\u00e9 barvy ka\u017ed\u00e9ho sn\u00edmku nakonec z\u00e1vis\u00ed na po\u017eadovan\u00e9 \u00farovni p\u0159esnosti fotografa a mno\u017estv\u00ed \u010dasu, kter\u00fd mus\u00ed str\u00e1vit n\u00e1sledn\u00fdm zpracov\u00e1n\u00edm. Zat\u00edmco n\u011bkte\u0159\u00ed fotografov\u00e9 d\u00e1vaj\u00ed p\u0159ednost dodate\u010dn\u00e9 \u00faprav\u011b vyv\u00e1\u017een\u00ed b\u00edl\u00e9 b\u011bhem n\u00e1sledn\u00e9ho zpracov\u00e1n\u00ed, jin\u00ed se mohou rozhodnout po\u0159izovat fotografie s p\u0159esn\u011bj\u0161\u00edm vyv\u00e1\u017een\u00edm b\u00edl\u00e9 p\u0159\u00edmo ve fotoapar\u00e1tu. <\/p>\n<\/div>\n<div class=\"question\">\n<div class=\"qtitle\"> Z\u00e1le\u017e\u00ed na vyv\u00e1\u017een\u00ed b\u00edl\u00e9 v re\u017eimu raw?<\/div>\n<p> Vyv\u00e1\u017een\u00ed b\u00edl\u00e9 je v RAWu d\u016fle\u017eit\u00e9, ano. I kdy\u017e v\u00e1m fotografov\u00e1n\u00ed do form\u00e1tu RAW d\u00e1v\u00e1 v\u011bt\u0161\u00ed volnost p\u0159i n\u00e1sledn\u00e9m zpracov\u00e1n\u00ed, je st\u00e1le z\u00e1sadn\u00ed spr\u00e1vn\u011b vyv\u00e1\u017eit b\u00edlou barvu ji\u017e p\u0159i po\u0159izov\u00e1n\u00ed fotografie. Pokud je vyv\u00e1\u017een\u00ed b\u00edl\u00e9 nastaveno spr\u00e1vn\u011b, jsou barvy na fotografii p\u0159esn\u00e9 a autentick\u00e9 pro danou sc\u00e9nu. Za\u010d\u00edt se spr\u00e1vn\u00fdm vyv\u00e1\u017een\u00edm b\u00edl\u00e9 pom\u00e1h\u00e1 zachovat celistvost sn\u00edmku a zefektiv\u0148uje proces \u00faprav, i kdy\u017e soubory RAW lze pozd\u011bji upravovat.<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Jak nastavit vyv\u00e1\u017een\u00ed b\u00edl\u00e9? Z\u00e1kladn\u00ed a nejjednodu\u0161\u0161\u00ed mo\u017enost, jak nastavit vyv\u00e1\u017een\u00ed b\u00edl\u00e9, je pou\u017eit\u00ed p\u0159edvoleb, kter\u00e9 pro v\u00e1s p\u0159ipravil v\u00fdrobce fotoapar\u00e1tu. Standardn\u011b b\u00fdv\u00e1 k dispozici mo\u017enost nastavit vyv\u00e1\u017een\u00ed b\u00edl\u00e9 na denn\u00ed sv\u011btlo (daylight), zata\u017eeno (cloudy), st\u00edn (shadow), \u017e\u00e1rovka (tungsten), z\u00e1\u0159ivka (fluorescent) a z\u00e1blesk (flash). Dal\u0161\u00ed informace najdete na www.milujemefotografii.cz Mnoho za\u010d\u00ednaj\u00edc\u00edch fotograf\u016f \u010dasto p\u0159ehl\u00ed\u017e\u00ed d\u016fle\u017eitost &#8230; <a title=\"Understanding How White Balance Works\" class=\"read-more\" href=\"https:\/\/tech-lib.eu\/tech\/understanding-how-white-balance-works\/\" aria-label=\"\u010c\u00edst v\u00edce o Understanding How White Balance Works\">\u010c\u00edst d\u00e1l<\/a><\/p>\n","protected":false},"author":1463,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[468],"tags":[],"class_list":["post-9471","post","type-post","status-publish","format-standard","hentry","category-photography"],"_links":{"self":[{"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/posts\/9471","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/users\/1463"}],"replies":[{"embeddable":true,"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/comments?post=9471"}],"version-history":[{"count":0,"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/posts\/9471\/revisions"}],"wp:attachment":[{"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/media?parent=9471"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/categories?post=9471"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/tags?post=9471"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}