HDR vs SDR: Menene Bambancin?Shin HDR ya cancanci Zuba Jari na gaba?
Shin kun taɓa jin labarin HDR?A zamanin yau HDR yana tasowa a ko'ina cikin rayuwarmu kuma muna iya samun abun ciki na HDR ya zama wayar hannu, camcorder, sabis na yawo kamar YouTube, Netflix, ko 4K UHD Blu-ray DVD.Don haka, menene HDR daidai?Ta yaya ya bambanta da SDR?Me ya sa yake damun ku?Wannan labarin zai amsa duk tambayoyinku.
Abubuwan da ke ciki:
Sashe na 1: Menene HDR da SDR?
Sashe na 2: HDR vs. SDR Kwatanta
Sashe na 3: Babban Ma'aunin HDR Biyu: Dolby Vision, HDR10 da HDR10+
Sashe na 4: Shin Saitin ku na iya Wasa HDR?
Sashe na 5: Shin yana da daraja Haɓaka zuwa HDR?
Sashe na 6: Menene Idan 4K HDR Yayi Dull kuma Wankewa Lokacin Yin Wasa?
Sashe na 1: Menene HDR da SDR?
SDR, ko Standard Dynamic Range, shine ma'auni na yanzu don nunin bidiyo da silima.SDR yana kwatanta hotuna ko bidiyo ta amfani da siginar gamma na al'ada.Tsarin gamma na al'ada ya dogara ne akan iyakokin bututun ray na cathode (CRT) wanda ke ba da damar iyakar haske na 100 cd/m2.
HDR, Tsaya don High Dynamic Range, fasaha ce ta hoto wacce ke ɗauka, aiwatarwa, da sake fitar da abun ciki ta hanyar da cikakkun bayanaiduka inuwa da manyan abubuwan da ke faruwa suna karuwa.Yayin da aka yi amfani da HDR a cikin daukar hoto na gargajiya a baya, kwanan nan ya yi tsalle zuwa wayoyin hannu, TVs, masu saka idanu, da ƙari.
Sashe na 2: HDR vs. SDR Kwatanta: Bambance-bambance Tsakanin HDR da SDR
SDR yana iyakance ta ikonsa don wakiltar ɗan juzu'i mai ƙarfi wanda HDR ke iyawa.HDR yana adana cikakkun bayanai a cikin fage inda rabon saɓanin mai duba zai iya zama cikas.SDR, a gefe guda, ba shi da wannan ƙwarewa.Babban rashin daidaituwa ya ta'allaka ne a cikin kewayon gamut launi da haske.Ka sani, SDR yana ba da damar gamut launi na sRGB da haske daga 0 zuwa 100nits.Ganin cewa HDR yana da kewayon launi mai faɗi har zuwa DCI - P3, mafi girman iyakar haske da ƙarancin ƙarancin haske.A lokaci guda, yana haɓaka ingancin hoto gabaɗaya dangane da bambanci, ƙudurin launin toka da sauran nau'ikan, yana kawo ƙarin ƙwarewa mai zurfi ga gwaninta.
Don sanya shi a sauƙaƙe, lokacin kwatanta HDR vs. SDR, HDR yana ba ku damar ganin ƙarin daki-daki da launi a cikin al'amuran da ke da tsayi mai tsayi.Wannan yana nufin HDR ya fi SDR haske.HDR yana ba ku damar ganin ƙarin cikakkun bayanai da launuka a cikin fage.HDR ya fi kyau a waɗannan fannoni:
◉ Haske:HDR yana ba da damar haske babba zuwa nits 1000 kuma ƙasa zuwa ƙasa da 1 nit.
◉ Launi gamut:HDR yawanci yana ɗaukar P3, har ma da gamut launi na Rec.2020.SDR yana amfani da Rec.709 gabaɗaya.
◉ Zurfin launi:HDR na iya zama cikin zurfin launi 8-bit, 10-bit da 12-bit.Yayin da SDR yawanci yana cikin 8-bit, kuma kaɗan ne ke amfani da 10-bit.
Sashe na 3: Babban Ma'aunin HDR Biyu: Dolby Vision, HDR10 da HDR10+
A zahiri, babu ma'anar ƙarshe na ma'aunin HDR.Akwai manyan ma'auni guda biyu da ake amfani da su a yau, Dolby Vision da HDR10.Haka kuma, akwai sabon tsarin HDR10+, wanda ke da niyyar gabatar da HDR mai ƙarfi zuwa ma'aunin HDR10 yayin da ya rage ba tare da sarauta ba.Za mu shiga cikin bambance-bambance tsakanin kowane babban tsarin HDR guda biyu da ke ƙasa.
Dolby Vision
Dolby Vision shine ma'aunin HDR wanda ke buƙatar masu saka idanu don an tsara su musamman tare da guntu kayan aikin Dolby Vision.Akwai kuɗin sarauta na Dolby Vision, kusan $3 ga kowane saitin TV.Kamar HDR10, Dolby Vision yana amfani da gamut launi mai faɗi na Rec.2020, 1000 nits na haske, amma yana ɗaukar zurfin launi 12-bit kuma yana goyan bayan tsarin sassa na bayanai masu ƙarfi.
HDR10
HDR10 buɗaɗɗen ma'auni ne, kuma ba lallai ne ku biya kowane sarauta don amfani da shi ba.Lambar "10" tana nufin zurfin launi 10bit.Baya ga wannan, HDR10 kuma yana ba da shawarar amfani da faffadan gamut Rec.2020, 1000 nits na haske, da yanayin sarrafa bayanai.
HDR10 shine ma'aunin HDR na gama gari wanda kusan dukkanin manyan masana'antun TV da masu samar da yawo, irin su Sony, Disney, 20th Century Fox, Warner Bros., Paramount, Universal, da Netflix sun ɗauki HDR10 don ƙirƙirar fayafai na 4K UHD Blu ray.Bayan haka, na'urori kamar Xbox One, PS4, Apple TV kuma suna goyan bayan HDR10.
HDR10 vs Dolby Vision - Menene Bambancin?
HDR10 da Dolby Vision sune manyan nau'ikan HDR guda biyu.Bambanci shine HDR10 shine bude-daidaitacce kuma ba mai mallakar mallaka ba, yayin da Dolby Vision yana buƙatar lasisi da kuɗi daga Dolby.
Kuma yayin da Dolby Vision a halin yanzu yana iya samar da ingantacciyar ingancin hoto, babu gidajen talabijin da za su iya cin gajiyar abin da yake bayarwa sabanin HDR10.
Koyaya, Dolby Vision yana ba da ingantaccen hoto mai inganci, galibi saboda ƙarfin metadata.
HDR10+
Kamar yadda aka ambata a sama, akwai wani tsarin HDR10+.HDR10+ misali ne na HDR wanda Samsung ya saita don Dolby Vision, wanda yayi daidai da hangen nesa na juyin halitta na HDR10.Mai kama da Dolby Vision, HDR10+ yana goyan bayan tsarin sassa na bayanai mai ƙarfi, amma HDR10+ daidaitaccen buɗaɗɗe ne, yana nufin samun ingantacciyar gogewar gani-audio a ƙaramin farashi.
A yanzu, HDR10 shine mafi kyawun farashi da ingantaccen tsari, yayin da Dolby Vision shine zaɓi na ƙima.A lokacin wannan rubutun, abun ciki na DR10+ yana samuwa ne kawai akan wasu sabis na yawo (ciki har da Amazon) da fayafai, amma ƙarin TVs sun fara tallafawa HDR10+.
Sashe na 4: Shin Saitin ku na iya Wasa HDR?
Da zarar kun sami abun cikin HDR ɗin ku, ko bidiyo ne na HDR ko kuma wasan HDR, dole ne ku tabbatar da saitin ku yana iya nuna abun ciki na HDR.
Mataki na farko shine tabbatar da cewa katin zanen ku yana goyan bayan HDR.
Ana iya nuna HDR akan HDMI 2.0 da DisplayPort 1.3.Idan GPU ɗinku yana da ɗayan waɗannan tashoshin jiragen ruwa to yakamata ya kasance yana iya nuna abun ciki na HDR.A matsayinka na babban yatsan hannu, duk Nvidia 9xx jerin GPU's da sababbi suna da tashar tashar HDMI 2.0, kamar yadda duk katunan AMD daga 2016 gaba.
Har zuwa nunin ku, za ku tabbata cewa shi ma yana da ikon tallafawa abun ciki na HDR.Nuni masu jituwa na HDR dole ne su sami ƙaramin ƙuduri na Cikakken HD 1080p.Kayayyaki kamar Asus ROG Swift PG27UQ, Acer Predator X27, Alienware AW5520QF misalai ne na masu saka idanu na 4K tare da tallafin abun ciki na HDR10.Waɗannan masu saka idanu kuma suna ba da daidaiton launi a cikin ma'auni a ƙoƙarin tabbatar da cewa hotunan kan allo sun yi kama da gaskiya ga rayuwa gwargwadon yiwuwa.
Yadda ake Samun Abubuwan Abubuwan HDR
Dangane da yawo, Netflix da Amazon Prime suna tallafawa HDR akan Windows 10. Amma ga sauran abubuwan HDR, Sony, Disney, 20th Century Fox, Warner Bros., Paramount, Universal, da Netflix duk suna amfani da HDR10 don ƙirƙirar abubuwan 4K UHD Blu ray a ciki. fayafai.Ko kuma kuna iya yin rikodin abubuwan ku na 4K HDR tare da wayar hannu, GoPro, DJI, camcorder da ƙari.
Sashe na 5: Shin yana da daraja Haɓaka zuwa HDR?
Idan kuna la'akari da tsalle zuwa HDR, kuna iya yin mamaki: Shin HDR kyakkyawan saka hannun jari ne?Shin fasahar High Dynamic Range za ta tashi da gaske?
Duk da yake ba shakka, babu abin da ya taɓa tabbata 100%, fasahar HDR tana da arziki a cikin ni'ima.A halin yanzu, fasahar da ke tattare da ita tana da alaƙa da na ƙudirin ma'anar ma'ana mai ƙarfi, in ba haka ba da aka sani da 4K.
Tun da babban kasuwa yana karɓar 4K tare da sauƙi mai sauƙi da sauri, yana tsaye ga tunanin cewa HDR zai bi hanya iri ɗaya don ci gaba.Za mu iya kwatanta HDR da SDR duk rana amma ko HDR yana da kyau a gare ku zai zo daga ƙarshe zuwa kwarewar ku.A yanzu, jin daɗi don bincika kewayon ViewSonic na masu saka idanu na ColorPro masu jituwa na HDR kuma ko nutse zurfi cikin duniyar gyaran launi da ƙimar launi.
An yi sa'a ga duk waɗanda suka fara ɗaukar hoto a can, samfuran HDR ba su da wahala a samu.Fa'idodin HDR har ma sun faɗaɗa cikin wasa ta hanyar ba ku damar ganin ƙarin daki-daki a cikin wasannin ku don jin daɗin gaske.
Menene Idan 4K HDR Yayi Dull kuma An Wanke Lokacin Yin Wasa?
Idan aka kwatanta da SDR (daidaitaccen kewayon tsauri), HDR na iya sa bidiyon ku ya zama mai haske da rayuwa godiya ga faffadan launuka da zurfin.Duk da haka, babu abin da yake cikakke.Kodayake adadin tallace-tallace na na'urar bidiyo na 4K HDR yana haɓaka, har yanzu ana amfani da SDR TVs, masu saka idanu, injina, tebur da wayoyi.
Don haka a nan tambayar ta zo: lokacin da kuka kalli bidiyon 4K HEVC HDR 10-bit akan nunin HDR mara tallafi, bidiyon HDR zai rasa asalin launi na asali kuma yana lalata haske da jikewa.Duk hoton bidiyon zai zama launin toka.Wannan shine abin da muka saba kira wankin launi.
A cikin ƙoƙarin sake kunna bidiyo na HDR 10-bit akan na'urorin SDR, yakamata ku fara canza HDR zuwa SDR don kawar da batun launi da aka wanke.KumaEaseFab Video Converteryana daya daga cikin manyan hanyoyin zuwamaida kowane bidiyo na 4K HDR zuwa SDRa cikin 4K / 1080p, HEVC zuwa H.264 ba tare da hasara na gani ba akan haske, launi, bambanci da sauransu.Ƙara koyo game da mahimman abubuwan sa:
◉ Karɓa da kowane nau'in bidiyoyin 4K HDR, ko da daga ina suka fito da kuma irin tsarin da suke amfani da shi.
◉ Maida 4K HDR bidiyo zuwa MP4, H.264, HEVC, MOV, AVI, FLV, iPhone, iPad, HDTV, Xbox, PS4 da 420+ saitattun bayanan martaba.
◉ Matsa ƙudurin 4K zuwa 1080p / 720p ko haɓaka HD zuwa 4K a hankali ba tare da hasarar gani ba.
◉ Saurin jujjuya bidiyo mai saurin gaske & 100% inganci da aka tanada tare da tallafin haɓaka kayan masarufi da injin inganci.
Lokacin aikawa: Agusta-26-2021