Makina a HDR aposachedwa kwambiri pazithunzi za LED

Makina a HDR aposachedwa kwambiri pazithunzi za LED 

Kodi mwatsala pang'ono kugula chophimba cha LED ndipo simukudziwa kufunika kwa mawu akuti HDR, (High Dynamic Range, m'mawu ake achingelezi)?

Osadandaula, apa tikufotokozerani.HDR, mwachidule, ndi gawo la chophimba chanu cha LED chomwe chimayang'anira kutulutsa zowoneka bwino zamitundu yowoneka bwino komanso zosiyana kwambiri.

Kusiyanitsa kumayesedwa ndi kusiyana pakati pa azungu owala kwambiri ndi akuda kwambiri omwe chophimba cha LED chimatha kuwonetsa, kuyezedwa mu candela pa lalikulu mita (cd / m2): otchedwa NITS.

Pali mitundu ingapo mu HDR, koma pakadali pano pali osewera akulu awiri: mtundu wa Dolby Vision, ndi HDR10 yotseguka.Dolby anali woyamba kulowa nawo phwandolo ndi TV yachiwonetsero yomwe imatha kuwunikira mpaka 4,000 nits.Kwa kanthawi kochepa, Dolby Vision inali yofanana ndi HDR, koma si onse opanga omwe ankafuna kutsatira malamulo a Dolby (kapena kulipira malipiro awo), ndipo ambiri anayamba kugwiritsira ntchito njira zawo.

Mitundu iwiri ikuluikulu ya HDR imagwiritsa ntchito metadata yomwe imayendetsa kanema wa kanema pa chingwe cha HDMI, metadata yomwe imalola kuti vidiyo yoyambira ifike.“uzani”chiwonetsero cha LED momwe mungasonyezere mitundu.HDR10 imagwiritsa ntchito njira yosavuta: imatumiza metadata zonse nthawi imodzi komanso koyambirira kwa kanema, kunena ngati, "Kanemayu wasungidwa pogwiritsa ntchito HDR, ndipo muyenera kuchita izi."

HDR10 yakhala yotchuka kwambiri pamitundu iwiriyi.Koposa zonse, ndi mulingo wotseguka: opanga zowonera za LED amatha kuyigwiritsa ntchito kwaulere.Imalimbikitsidwanso ndi UHD Alliance, yomwe nthawi zambiri imakonda miyezo yotseguka kumapangidwe ake monga Dolby Vision.