ProRes fasaha ce ta codec da Apple ya haɓaka a cikin 2007 don software na Final Cut Pro.Da farko, ProRes yana samuwa ga kwamfutocin Mac kawai.Tare da haɓaka tallafi ta ƙarin kyamarorin bidiyo da masu rikodi, Apple ya fitar da abubuwan toshe ProRes don Adobe Premiere Pro, Bayan Tasirin, da Mai rikodin Media, yana bawa masu amfani da Microsoft damar shirya bidiyo a cikin tsarin ProRes kuma.
Fa'idodin amfani da codec na Apple ProRes a bayan samarwa sune:
Rage nauyin aikin kwamfuta, godiya ga matsawa hoto
ProRes dan matsawa kowane firam na bidiyon da aka ɗauka, yana rage bayanan bidiyo.Hakanan, kwamfutar tana iya aiwatar da bayanan bidiyo da sauri yayin lalatawa da gyarawa.
Hotuna masu inganci
ProRes yana amfani da rufaffiyar 10-bit don samun ingantacciyar bayanin launi tare da ingantaccen ƙimar matsawa.ProRes kuma yana goyan bayan kunna bidiyo masu inganci a cikin nau'i daban-daban.
Mai zuwa yana gabatar da nau'ikan nau'ikan tsarin Apple ProRes.Don bayani game da "zurfin launi" da "samfurin chroma", da fatan za a duba labaran mu na baya-Menene 8-bit, 10-bit, 12-bit, 4:4:4, 4:2:2 da 4:2:0
Apple ProRes 4444 XQ: Sigar ProRes mafi girma tana goyan bayan 4: 4: 4: 4 tushen hoto (ciki har da tashoshi alpha) tare da ƙimar bayanai mai girma don adana daki-daki a cikin manyan hotuna masu ƙarfi da aka samar ta mafi ingancin dijital na yau. na'urori masu auna hoto.Apple ProRes 4444 XQ yana adana jeri mai ƙarfi sau da yawa fiye da tsayayyen kewayon Rec.Hoto na 709-har ma a kan matsananciyar sarrafa tasirin gani, wanda baƙar fata masu girman sautin ko fitattun abubuwa ke shimfiɗa sosai.Kamar daidaitaccen Apple ProRes 4444, wannan codec yana tallafawa har zuwa rago 12 a kowane tashar hoto da 16 ragowa don tashar alpha.Apple ProRes 4444 XQ yana fasalta ƙimar bayanan da aka yi niyya kusan 500 Mbps don 4: 4: 4 tushe a 1920 x 1080 da 29.97 fps.
Apple ProRes 4444: Sigar ProRes mai inganci sosai don 4:4:4:4: tushen hoto (ciki har da tashoshi alpha).Wannan codec yana da cikakken ƙuduri, ƙwararren 4: 4: 4: 4 RGBA launi da amincin gani wanda ba shi da bambanci da ainihin abu.Apple ProRes 4444 mafita ce mai inganci don adanawa da musayar zane-zanen motsi da haɗe-haɗe, tare da kyakkyawan aiki da tashar alpha maras nauyi har zuwa rago 16.Wannan codec yana da ƙarancin ƙimar bayanai na ban mamaki idan aka kwatanta da 4: 4: 4 HD mara nauyi, tare da ƙimar bayanan da aka yi niyya kusan 330 Mbps don 4: 4: 4 tushe a 1920 x 1080 da 29.97 fps.Hakanan yana ba da ruɓi kai tsaye da kuma yanke hukunci na tsarin pixel na RGB da Y'CBCR.
Apple ProRes 422 HQ: Mafi girman sigar ƙimar bayanai na Apple ProRes 422 wanda ke adana ingancin gani a daidai matakin da Apple ProRes 4444, amma don 4: 2: 2 tushen hoto.Tare da karɓuwa da yawa a cikin masana'antar samarwa bayan bidiyo, Apple ProRes 422 HQ yana ba da adana rashin asara gani na ƙwararrun ƙwararrun ƙwararrun HD bidiyo wanda siginar HD-SDI mai haɗin gwiwa guda ɗaya zai iya ɗauka.Wannan codec yana goyan bayan cikakken faɗin, 4: 2: 2 tushen bidiyo a zurfin pixel 10-bit yayin da ya rage asara ta hanyar ƙarnuka da yawa na yankewa da sake shigar da su.Matsakaicin ƙimar bayanan Apple ProRes 422 HQ shine kusan 220 Mbps a 1920 x 1080 da 29.97fps.
Apple ProRes 422: Codec mai inganci mai inganci yana ba da kusan duk fa'idodin Apple ProRes 422 HQ, amma a kashi 66 na ƙimar bayanan don ma mafi kyawun multistream da aikin gyara lokaci-lokaci.Matsakaicin ƙimar Apple ProRes 422 shine kusan 147 Mbps a 1920 x 1080 da 29.97 fps.
Apple ProRes 422 LT: Codec mafi matsa lamba fiye da
Apple ProRes 422, tare da kusan kashi 70 na ƙimar bayanai da
30 bisa dari karami girman fayil.Wannan codec ɗin cikakke ne don mahalli inda ƙarfin ajiya da ƙimar bayanai suka fi mahimmanci.Matsakaicin ƙimar bayanan Apple ProRes 422 LT shine kusan 102 Mbps a 1920 x 1080 da 29.97 fps.
Apple ProRes 422 Proxy: Codec mai matsewa sosai fiye da Apple ProRes 422 LT, wanda aka yi niyya don amfani a cikin ayyukan aiki na layi wanda ke buƙatar ƙarancin ƙimar bayanai amma Cikakken bidiyo.Matsakaicin ƙimar bayanan ProRes 422 Proxy shine kusan 45 Mbps a 1920 x 1080 da 29.97fps.
Jadawalin da ke ƙasa yana nuna yadda ƙimar bayanan Apple ProRes ya kwatanta da ƙudurin Cikakken HD mara ƙarfi (1920 x 1080) 4: 4: 4 12-bit da 4: 2: 2 10-bit jerin hotuna a 29.97 fps.Dangane da ginshiƙi, har ma da ɗaukar mafi kyawun tsarin ProRes-Apple ProRes 4444 XQ da Apple ProRes 4444, suna ba da ƙarancin amfani da bayanai fiye da na hotuna marasa ƙarfi.
Lokacin aikawa: Afrilu-22-2022