Hlavn\u00fdm cie\u013eom HDR je zachova\u0165 detaily v najtmav\u0161\u00edch aj najsvetlej\u0161\u00edch oblastiach sn\u00edmky. Existuj\u00fa dva hlavn\u00e9 pr\u00edstupy.<\/p>\n\n\n\n
Sn\u00edmanie s r\u00f4znymi expoz\u00edciami.<\/strong> Zaznamen\u00e1 sa nieko\u013eko sn\u00edmok s r\u00f4znymi \u00farov\u0148ami expoz\u00edcie. Jedna je svetlej\u0161ia, aby zachytila detaily v tie\u0148och, zatia\u013e \u010do druh\u00e1 je tmav\u0161ia, aby zachovala svetl\u00e9 oblasti. Sn\u00edmky sa potom spoja, pri\u010dom sa z ka\u017edej pou\u017eij\u00fa oblasti s najvhodnej\u0161ou expoz\u00edciou. To mo\u017eno vykona\u0165 s\u00fa\u010dasne pomocou viacer\u00fdch kamier alebo pomocou jednej kamery, ktor\u00e1 zaznamen\u00e1va sn\u00edmky postupne. Druh\u00fd pr\u00edstup nie je vhodn\u00fd pre dynamick\u00e9 sc\u00e9ny, preto\u017ee objekty sa m\u00f4\u017eu medzi expoz\u00edciami pohybova\u0165, \u010do sp\u00f4sobuje duchovit\u00e9 obrazy a \u010fal\u0161ie artefakty.<\/p>\n\n\n\n Sn\u00edma\u010d so \u0161irok\u00fdm dynamick\u00fdm rozsahom.<\/strong> Modern\u00e9 kamery dok\u00e1\u017eu zachyti\u0165 \u0161irok\u00fd rozsah \u00farovn\u00ed jasu v jednej sn\u00edmke bez kombinovania viacer\u00fdch expoz\u00edci\u00ed. In\u00fdmi slovami, kamera zaznamen\u00e1 nieko\u013eko obrazov, ktor\u00e9 jej procesor analyzuje, aby vytvoril jednu v\u00fdsledn\u00fa sn\u00edmku.<\/p>\n\n\n\n V\u00fdsledkom je obraz so zachovan\u00fdmi detailmi a plynul\u00fdmi farebn\u00fdmi prechodmi.<\/p>\n\n\n\n Samotn\u00e9 zachytenie HDR videa nesta\u010d\u00ed. Mus\u00ed sa tie\u017e zak\u00f3dova\u0165 a prenies\u0165 tak, aby ho obrazovka mohla spr\u00e1vne zobrazi\u0165. Metad\u00e1ta sa pren\u00e1\u0161aj\u00fa spolu s videosign\u00e1lom. Obsahuj\u00fa technick\u00e9 inform\u00e1cie o jase, kontraste a farb\u00e1ch, ktor\u00e9 telev\u00edzoru hovoria, ako m\u00e1 obraz zobrazi\u0165. Telev\u00edzor preto mus\u00ed podporova\u0165 pr\u00edslu\u0161n\u00fd \u0161tandard. V opa\u010dnom pr\u00edpade sa obraz zobraz\u00ed v \u0161tandardnom form\u00e1te SDR.<\/p>\n\n\n\n Existuj\u00fa dva sp\u00f4soby prenosu t\u00fdchto inform\u00e1ci\u00ed.<\/p>\n\n\n\n Z\u00e1kladn\u00fd otvoren\u00fd form\u00e1t HDR, ktor\u00fd v roku 2015 \u0161tandardizovala organiz\u00e1cia Consumer Technology Association (CTA). Je povinn\u00fd pre disky 4K Blu-ray a sl\u00fa\u017ei ako z\u00e1klad pre HDR10+ a mnoh\u00e9 profily Dolby Vision. Pou\u017e\u00edva 10-bitov\u00fa farebn\u00fa h\u013abku a farebn\u00fd priestor Rec. 2020, hoci skuto\u010dn\u00e9 displeje zvy\u010dajne pokr\u00fdvaj\u00fa iba \u010das\u0165 tohto farebn\u00e9ho rozsahu.<\/p>\n\n\n\n Statick\u00e9 metad\u00e1ta sa definuj\u00fa raz pre cel\u00fd film a opisuj\u00fa monitor pou\u017e\u00edvan\u00fd pri masteringu, maxim\u00e1lny jas sn\u00edmok a priemern\u00fd jas. Samotn\u00fd telev\u00edzor ur\u010duje, ako prisp\u00f4sobi\u0165 \u00farovne jasu mo\u017enostiam svojho displeja, tak\u017ee obraz m\u00f4\u017ee na r\u00f4znych modeloch telev\u00edzorov vyzera\u0165 v\u00fdrazne odli\u0161ne a niektor\u00e9 detaily sa m\u00f4\u017eu v tmav\u00fdch sc\u00e9nach strati\u0165. Form\u00e1t je bezplatn\u00fd a podporuje ho prakticky v\u0161etko zariadenie HDR.<\/p>\n\n\n\n Vylep\u0161enie HDR10, ktor\u00e9 spolo\u010dnosti Samsung a Amazon ozn\u00e1mili v roku 2017. Form\u00e1t nesk\u00f4r \u0161tandardizovalo konzorcium HDR10+, ktor\u00e9 zalo\u017eili spolo\u010dnosti Samsung, Panasonic a 20th Century Fox. HDR10+ prid\u00e1va k z\u00e1kladn\u00e9mu toku HDR10 dynamick\u00e9 metad\u00e1ta zalo\u017een\u00e9 na \u0161tandarde SMPTE ST 2094-40. Tieto metad\u00e1ta sa pren\u00e1\u0161aj\u00fa pre ka\u017ed\u00fa sn\u00edmku, \u010do umo\u017e\u0148uje telev\u00edzoru presnej\u0161ie upravova\u0165 jas a kontrast v ka\u017edom okamihu videa pod\u013ea mo\u017enost\u00ed jeho zobrazovacieho panela.<\/p>\n\n\n\n Zariadenia, ktor\u00e9 nepodporuj\u00fa HDR10+, zobrazuj\u00fa tento obsah ako \u0161tandardn\u00e9 HDR10. Farebn\u00e1 h\u013abka zost\u00e1va 10 bitov. \u0160tandard je bez licen\u010dn\u00fdch poplatkov, ale nepodporuj\u00fa ho v\u0161etky zariadenia.<\/p>\n\n\n\n Dodato\u010dn\u00e1 funkcia HDR10+, ktor\u00e1 zoh\u013ead\u0148uje osvetlenie miestnosti. Telev\u00edzor meria okolit\u00e9 svetlo pomocou vstavan\u00e9ho sn\u00edma\u010da a upravuje jas obrazu HDR, pri\u010dom ho zosvet\u013euje v dobre osvetlenej miestnosti a zni\u017euje jeho jas v tmavej miestnosti. Spolo\u010dnos\u0165 Samsung t\u00fato funkciu predstavila vo svojich telev\u00edzoroch v roku 2021 a z\u00e1rove\u0148 ozn\u00e1mila, \u017ee obsah HDR10 na Prime Video sa bude na kompatibiln\u00fdch telev\u00edzoroch Samsung zobrazova\u0165 v re\u017eime HDR10+ Adaptive. Webov\u00e1 str\u00e1nka HDR10+ opisuje t\u00fato funkciu ako s\u00fa\u010das\u0165 \u0161pecifik\u00e1cie HDR10+ Advanced, ktor\u00e1 bola predstaven\u00e1 v roku 2025.<\/p>\n\n\n\n Hern\u00e1 verzia HDR10+, ktor\u00fa vyvinula spolo\u010dnos\u0165 HDR10+ Technologies. Pod\u013ea spolo\u010dnosti Samsung pred zaveden\u00edm tohto form\u00e1tu hry a displeje nedok\u00e1zali identifikova\u0165 vz\u00e1jomn\u00e9 mo\u017enosti, tak\u017ee nastavenia HDR boli bu\u010f v\u0161eobecn\u00e9, alebo sa museli vybera\u0165 manu\u00e1lne. Pri HDR10+ Gaming si hern\u00fd engine a zobrazovacie zariadenie vymie\u0148aj\u00fa inform\u00e1cie priamo, \u010do umo\u017e\u0148uje hre identifikova\u0165 mo\u017enosti displeja a vytvori\u0165 obraz HDR optimalizovan\u00fd pre dan\u00fa obrazovku. Automatick\u00e9 nastavenie bez manu\u00e1lnej kalibr\u00e1cie je jednou z propagovan\u00fdch funkci\u00ed. Pri uveden\u00ed form\u00e1tu bol dostupn\u00fd na po\u010d\u00edta\u010doch s podporovan\u00fdmi grafick\u00fdmi kartami NVIDIA a na nov\u0161\u00edch telev\u00edzoroch a monitoroch Samsung.<\/p>\n\n\n\n Nov\u0161\u00ed \u0161tandard navrhnut\u00fd pre \u0161pi\u010dkov\u00e9 telev\u00edzory s ve\u013emi vysok\u00fdm maxim\u00e1lnym jasom, v\u00fdkonn\u00fdmi procesormi a ve\u013ek\u00fdmi obrazovkami. Prime Video ho zav\u00e1dza v telev\u00edzoroch Samsung z roku 2026 od augusta 2026. Medzi jeho ozn\u00e1men\u00e9 funkcie patria nasleduj\u00face.<\/p>\n\n\n\n Licencovan\u00fd \u0161tandard vyvinut\u00fd spolo\u010dnos\u0165ou Dolby a predstaven\u00fd v roku 2014. Pou\u017e\u00edva dynamick\u00e9 metad\u00e1ta, ktor\u00e9 sa m\u00f4\u017eu meni\u0165 od sc\u00e9ny k sc\u00e9ne alebo od sn\u00edmky k sn\u00edmke. Pri streamovan\u00ed m\u00e1 obraz zvy\u010dajne 10-bitov\u00fa farebn\u00fa h\u013abku, zatia\u013e \u010do 12-bitov\u00e9 video je mo\u017en\u00e9 len pri ur\u010dit\u00fdch profiloch, napr\u00edklad pri profiloch pou\u017e\u00edvan\u00fdch na diskoch 4K Blu-ray. Dolby Vision m\u00e1 nieko\u013eko profilov, pri\u010dom niektor\u00e9 s\u00fa ur\u010den\u00e9 na streamovanie, in\u00e9 na disky a niektor\u00e9 s\u00fa kompatibiln\u00e9 s HDR10 na telev\u00edzoroch, ktor\u00e9 nepodporuj\u00fa Dolby Vision.<\/p>\n\n\n\n V roku 2025 spolo\u010dnos\u0165 Dolby ozn\u00e1mila Dolby Vision 2. Pod\u013ea spolo\u010dnosti prid\u00e1va optimaliz\u00e1ciu obrazu pomocou umelej inteligencie pre podmienky sledovania a ovl\u00e1danie vyhladzovania pohybu pre ka\u017ed\u00fa sn\u00edmku. Star\u0161ie telev\u00edzory m\u00f4\u017eu tento obsah na\u010falej prehr\u00e1va\u0165, ale nov\u00e9 funkcie vy\u017eaduj\u00fa podporu Dolby Vision 2. Tento \u0161tandard vy\u017eaduje od v\u00fdrobcov platen\u00fa licenciu. Samsung vo svojich telev\u00edzoroch nepodporuje Dolby Vision a namiesto toho sa zameriava na HDR10+.<\/p>\n\n\n\n Form\u00e1t vyvinut\u00fd organiz\u00e1ciami BBC a NHK pre telev\u00edzne vysielanie a \u017eiv\u00e9 prenosy. Je s\u00fa\u010das\u0165ou odpor\u00fa\u010dania ITU-R BT.2100. HLG nepou\u017e\u00edva metad\u00e1ta, preto\u017ee inform\u00e1cie o jase s\u00fa zak\u00f3dovan\u00e9 priamo do jeho prenosovej funkcie, ktorej spodn\u00e1 \u010das\u0165 sa podob\u00e1 tradi\u010dnej gama krivke SDR, zatia\u013e \u010do horn\u00e1 \u010das\u0165 je logaritmick\u00e1 a sprac\u00fava svetl\u00e9 oblasti.<\/p>\n\n\n\n To umo\u017e\u0148uje zobrazova\u0165 rovnak\u00fd sign\u00e1l na telev\u00edzoroch HDR aj SDR. Na obrazovke HDR obraz vyu\u017e\u00edva roz\u0161\u00edren\u00fd dynamick\u00fd rozsah, zatia\u013e \u010do na obrazovke SDR vyzer\u00e1 norm\u00e1lne, hoci na star\u0161\u00edch modeloch bez podpory \u0161irok\u00e9ho farebn\u00e9ho rozsahu m\u00f4\u017eu farby p\u00f4sobi\u0165 mierne nev\u00fdrazne. Form\u00e1t je bez licen\u010dn\u00fdch poplatkov a zvy\u010dajne pou\u017e\u00edva 10-bitov\u00fa farebn\u00fa h\u013abku. Nedok\u00e1\u017ee upravova\u0165 ka\u017ed\u00fa sc\u00e9nu tak presne ako form\u00e1ty s dynamick\u00fdmi metad\u00e1tami, ale jednoduch\u0161ie sa pou\u017e\u00edva pri vysielan\u00ed a nevy\u017eaduje samostatn\u00e9 streamy SDR a HDR.<\/p>\n\n\n\n <\/p>\n","protected":false},"excerpt":{"rendered":" S v\u00fdvojom digit\u00e1lneho videa sa zv\u00fd\u0161ilo rozl\u00ed\u0161enie a sn\u00edmkov\u00e1 frekvencia, ale kvalita obrazu zostala dlho obmedzen\u00e1. \u0160tandardn\u00e9 video (SDR, Standard Dynamic Range) je navrhnut\u00e9 pre \u00fazky rozsah jasu s obmedzen\u00fdm pomerom medzi najtmav\u0161\u00edmi a najsvetlej\u0161\u00edmi oblas\u0165ami sn\u00edmky. Zvy\u010dajne pou\u017e\u00edva 8-bitov\u00fa farebn\u00fa h\u013abku a farebn\u00fd priestor Rec. 709, \u010do znamen\u00e1, \u017ee detaily v tmav\u00fdch oblastiach sa […]<\/p>\n","protected":false},"author":1,"featured_media":13287,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[86],"tags":[87],"class_list":["post-13286","post","type-post","status-publish","format-standard","has-post-thumbnail","category-technologia","tag-technologia"],"_links":{"self":[{"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/posts\/13286","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/comments?post=13286"}],"version-history":[{"count":1,"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/posts\/13286\/revisions"}],"predecessor-version":[{"id":13289,"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/posts\/13286\/revisions\/13289"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/media\/13287"}],"wp:attachment":[{"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/media?parent=13286"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/categories?post=13286"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/tags?post=13286"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}![\"\"](\"https:\/\/global.tab-tv.com\/sk\/wp-content\/uploads\/sites\/5\/2026\/10\/How-an-HDR-Image-Is-Created.webp\")
<\/figure>\n\n\n\nAko sa HDR pren\u00e1\u0161a a zobrazuje<\/strong><\/h2>\n\n\n\n
\n
Preh\u013ead \u0161tandardov HDR<\/strong><\/h2>\n\n\n\n
HDR10<\/strong><\/h3>\n\n\n\n
HDR10+<\/strong><\/h3>\n\n\n\n
HDR10+ Adaptive<\/strong><\/h3>\n\n\n\n
HDR10+ Gaming<\/strong><\/h3>\n\n\n\n
HDR10+ Advanced<\/strong><\/h3>\n\n\n\n
\n
Dolby Vision<\/strong><\/h3>\n\n\n\n
HLG (Hybrid Log-Gamma)<\/strong><\/h3>\n\n\n\n
Porovnanie \u0161tandardov HDR<\/strong><\/h2>\n\n\n\n
\u0160tandard<\/th> Metad\u00e1ta<\/th> Farebn\u00e1 h\u013abka<\/th> Licencia<\/th> Rok<\/th><\/tr> HDR10<\/td> Statick\u00e9<\/td> 10 bitov<\/td> Otvoren\u00fd<\/td> 2015<\/td><\/tr> HDR10+<\/td> Dynamick\u00e9, pre ka\u017ed\u00fa sn\u00edmku<\/td> 10 bitov<\/td> Bez licen\u010dn\u00fdch poplatkov<\/td> 2017<\/td><\/tr> HDR10+ Adaptive<\/td> Dynamick\u00e9 metad\u00e1ta HDR10+ s \u00fapravami pod\u013ea sn\u00edma\u010da okolit\u00e9ho svetla<\/td> 10 bitov<\/td> Neuveden\u00e9<\/td> 2021<\/td><\/tr> HDR10+ Gaming<\/td> Pod\u013ea spolo\u010dnosti Samsung rozsiahlej\u0161ie ne\u017e HDR10<\/td> 10 bitov<\/td> Neuveden\u00e9<\/td> 2022<\/td><\/tr> HDR10+ Advanced<\/td> Pod\u013ea spolo\u010dnosti Samsung roz\u0161\u00edren\u00e9 metad\u00e1ta sc\u00e9n<\/td> 10 bitov<\/td> Bez licen\u010dn\u00fdch poplatkov<\/td> 2025<\/td><\/tr> Dolby Vision<\/td> Dynamick\u00e9<\/td> 10\u201312 bitov<\/td> Platen\u00e1 licencia<\/td> 2014<\/td><\/tr> HLG<\/td> Nepou\u017e\u00edvaj\u00fa sa<\/td> 10 bitov<\/td> Otvoren\u00fd<\/td> 2015<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n