HDR vs SDR: Yintoni umahluko?Ngaba iHDR iWufanele uTyalo-mali lwexesha elizayo?
Ngaba ukhe weva nge-HDR?Kule mihla i-HDR ibivela kuyo yonke indawo ebomini bethu kwaye sinokufumana imixholo ye-HDR kwiselula, ikhamera, iinkonzo zokusasaza ezifana neYouTube, Netflix, okanye i-4K UHD Blu-ray DVD.Ke, yintoni i-HDR kanye?Yohluke njani kwi-SDR?Kutheni le nto ibalulekile kuwe?Eli nqaku liza kuphendula yonke imibuzo yakho.
Imixholo:
Icandelo 1: Yintoni i-HDR kunye ne-SDR?
Icandelo 2: HDR vs. SDR Xa kuthelekiswa
Icandelo 3: ImiGangatho emibini ePhambili ye-HDR: I-Dolby Vision, i-HDR10 kunye ne-HDR10 +
Icandelo 4: Ngaba i-Setup yakho iyakwazi ukudlala i-HDR?
Icandelo 5: Ngaba kufanelekile ukuPhucula kwi-HDR?
Icandelo 6: Kuthekani ukuba i-4K HDR ibonakala ibuthuntu kwaye ihlanjwe xa idlala?
Icandelo 1: Yintoni i-HDR kunye ne-SDR?
SDR, okanye i-Standard Dynamic Range, ngumgangatho wangoku wevidiyo kunye nemiboniso ye-cinema.I-SDR ichaza imifanekiso okanye ividiyo isebenzisa isignali yegophe eqhelekileyo.I-curve ye-gamma eqhelekileyo yayisekelwe kwimida ye-cathode ray tube (CRT) evumela ukukhanya okuphezulu kwe-100 cd / m2.
HDR, emele iHigh Dynamic Range, bubuchule bomfanekiso obubamba, inkqubo, kwaye ivelise umxholo ngendlela yokuba iinkcukacha zezombini izithunzi kunye namagqabantshintshi omboniso ayanda.Ngelixa i-HDR yayisetyenziswa kwiifoto zemveli kwixesha elidlulileyo, isandula ukutsibela kwii-smartphones, iiTV, iimonitha, kunye nokunye.
Icandelo 2: I-HDR vs. SDR Xa kuthelekiswa: Umahluko phakathi kwe-HDR kunye ne-SDR
I-SDR ilinganiselwe ngokukwazi kwayo ukumela kuphela iqhezu loluhlu oluguquguqukayo olukwaziyo ukwenza i-HDR.I-HDR igcina iinkcukacha kwimiboniso apho umlinganiselo wokuchasana wemonitha unokuba ngumqobo.I-SDR, kwelinye icala, ayinabo obu buchule.Owona mahluko mkhulu kuluhlu lwegamut yombala kunye nokuqaqamba.Uyazi, i-SDR ivumela umbala we-sRGB kunye nokukhanya ukusuka kwi-0 ukuya kwi-100nits.Ngelixa i-HDR inoluhlu olubanzi lombala ukuya kuthi ga kwi-DCI - P3, umda oqaqambileyo ongaphezulu wokuqaqamba kunye nomda osezantsi wokuqaqamba.Kwangaxeshanye, iphucula umgangatho womfanekiso jikelele ngokwemiqathango yokuchasana, ukusonjululwa kwegreyscale kunye neminye imilinganiselo, izisa amava antywilayo kulowo unamava.
Ukuyibeka ngokulula, xa uthelekisa i-HDR vs.Oko kuthetha ukuba i-HDR ikhanya ngakumbi kune-SDR.I-HDR ikuvumela ukuba ubone ngakumbi iinkcukacha kunye nemibala kwimiboniso.I-HDR iphezulu kule miba:
◉ Ukukhanya:I-HDR ivumela ukukhanya phezulu ukuya kwi-1000 nits kwaye isezantsi ukuya ngaphantsi kwe-1 nit.
◉ Umbala we-gamut:I-HDR idla ngokuthatha i-P3, kunye ne-Rec.2020 color gamut.I-SDR isebenzisa i-Rec.709 ngokubanzi.
◉ Ubunzulu bombala:I-HDR inokuba kwi-8-bit, i-10-bit kunye ne-12-bit yobunzulu bombala.Ngelixa i-SDR iqhele ukuba kwi-8-bit, kwaye bambalwa kakhulu abasebenzisa i-10-bit.
Icandelo 3: ImiGangatho emibini ePhambili ye-HDR: I-Dolby Vision, i-HDR10 kunye ne-HDR10 +
Ngokwenyani, akukho nkcazo yokugqibela yemigangatho yeHDR.Kukho imigangatho emibini ebalaseleyo esetyenziswayo namhlanje, iDolby Vision kunye neHDR10.Ngapha koko, kukho ifomathi entsha ye-HDR10+, ejonge ukwazisa i-HDR eguquguqukayo kumgangatho we-HDR10 ngelixa ihlala ingenabukhosi.Siza kungena kumahluko phakathi kweefomathi ezimbini eziphambili zeHDR ezingezantsi.
Umbono weDolby
I-Dolby Vision ngumgangatho we-HDR ofuna ukuba iimonitha ziyilwe ngokukodwa kunye ne-Dolby Vision hardware chip.Kukho umrhumo wasebukhosini weDolby Vision, malunga needola ezi-3 kwiseti nganye yeTV.Njenge-HDR10, i-Dolby Vision isebenzisa i-Rec.2020 ebanzi yombala we-gamut, i-1000 nits yokukhanya, kodwa ithatha ubunzulu bombala we-12-bit kwaye ixhasa isakhiwo sedatha eguqukayo.
HDR10
I-HDR10 ngumgangatho ovulekileyo, kwaye akufuneki uhlawule nayiphi na imali ukuze uyisebenzise.Inani "10" limele ubunzulu bombala we-10bit.Ukongeza koku, i-HDR10 ikwacebisa ukusetyenziswa kwe-gamut ebanzi Rec.2020, i-1000 nits yokukhanya, kunye nemowudi yokucubungula idatha.
I-HDR10 ngowona mgangatho uqhelekileyo we-HDR ukuba phantse bonke abavelisi abakhulu beTV kunye nababoneleli bosasazo, abanje ngeSony, Disney, 20th Century Fox, Warner Bros., Paramount, Universal, kunye neNetflix yamkele i-HDR10 ukwenza iidiski ze-4K UHD Blu ray.Ngaphandle koko, izixhobo ezifana Xbox One, PS4, Apple TV ixhasa HDR10.
HDR10 vs Dolby Vision – Yintoni Umahluko?
I-HDR10 kunye neDolby Vision ziifomathi eziphambili zeHDR.Umahluko kukuba i-HDR10 ngumgangatho ovulekileyo kwaye ayingomnini, ngelixa i-Dolby Vision ifuna ilayisenisi kunye nemali evela kwiDolby.
Kwaye ngelixa iDolby Vision okwangoku ikwazi ukuvelisa umgangatho womfanekiso ongcono, azikho iiTV ezinokuthatha inzuzo epheleleyo kwinto ebonelela ngayo ngokuchasene neHDR10.
Nangona kunjalo, iDolby Vision ibonelela ngomgangatho womfanekiso ongcono, ngakumbi ngenxa yemetadata yayo eguqukayo.
HDR10+
Njengoko kukhankanyiwe ngasentla, kukho enye ifomathi ye-HDR10+.I-HDR10 + ngumgangatho we-HDR obekwe yi-Samsung ye-Dolby Vision, elingana nombono we-evolution ye-HDR10.Ngokufana neDolby Vision, i-HDR10 + ixhasa ulwakhiwo lwedatha eguqukayo, kodwa i-HDR10 + ngumgangatho ovulekileyo, ojolise ekufumaneni amava angcono okubukwayo ngexabiso eliphantsi.
Okwangoku, i-HDR10 yifomathi enexabiso elithe kratya kwaye ixhaphake, ngelixa iDolby Vision iyinketho yeprimiyamu.Ngeli xesha lokubhala, umxholo we-DR10 + ufumaneka kuphela kwiinkonzo ezimbalwa zokusasaza (kubandakanywa ne-Amazon) kunye neediski, kodwa ii-TV ezininzi ziqala ukuxhasa i-HDR10 +.
Icandelo 4: Ngaba i-Setup yakho iyakwazi ukudlala i-HDR?
Nje ukuba umxholo wakho we-HDR ugcinwe, nokuba yividiyo ye-HDR okanye kunye nomdlalo we-HDR, kuya kufuneka uqiniseke ukuba useto lwakho luyakwazi ukubonisa umxholo we-HDR.
Inyathelo lokuqala kukuqinisekisa ukuba ikhadi lakho lemizobo liyayixhasa iHDR.
I-HDR inokuboniswa kwi-HDMI 2.0 kunye ne-DisplayPort 1.3.Ukuba i-GPU yakho inelinye lala mazibuko kufuneka ikwazi ukubonisa umxholo we-HDR.Njengomthetho wesithupha, zonke iiNvidia 9xx ze-GPU's kunye nentsha ine-HDMI 2.0 port, njengawo onke amakhadi e-AMD ukusuka ngo-2016 ukuya phambili.
Ukuya kuthi ga ekuboniseni kwakho, kuya kufuneka uqiniseke ukuba nayo iyakwazi ukuxhasa umxholo we-HDR.Iziboniso ezihambelana ne-HDR kufuneka zibe nobuncinci besisombululo se-Full HD 1080p.Iimveliso ezifana ne-Asus ROG Swift PG27UQ, i-Acer Predator X27, i-Alienware AW5520QF yimizekelo yeemonitha ze-4K ezinenkxaso yomxholo we-HDR10.Aba bahloli baphinda bajongane nokuchaneka kombala kwi-equation kwiinzame zokuqinisekisa ukuba imifanekiso ekwiscreen ibonakala iyinyani ebomini kangangoko.
Indlela yokufumana imixholo ye-HDR
Ngokuphathelele ukusasaza, iNetflix kunye ne-Amazon Prime inkxaso ye-HDR kwi-Windows 10. Ngokumalunga neminye imixholo ye-HDR, i-Sony, i-Disney, i-20th Century Fox, i-Warner Bros., i-Paramount, i-Universal, kunye ne-Netflix bonke basebenzisa i-HDR10 ukwenza imixholo ye-4K UHD Blu ray kwi iidiski.Okanye ungarekhoda eyakho imixholo ye-4K HDR ngeselfowuni, iGoPro, i-DJI, ikhamera kunye nokunye.
Icandelo 5: Ngaba kufanelekile ukuPhucula kwi-HDR?
Ukuba ucinga ngokutsibela kwi-HDR, usenokuba uyazibuza: Ngaba iHDR lutyalo-mali olulungileyo?Ngaba itekhnoloji yoHlelo oluPhezulu lweDynamic Range luya kuqala?
Ngelixa kunjalo, akukho nto ihlala i-100% iqinisekile, itekhnoloji ye-HDR inethamsanqa kuyo.Okwangoku, itekhnoloji yayo yendalo ibotshelelwe ngokusondeleyo kuleyo yesisombululo senkcazo ephezulu kakhulu, eyaziwa ngokuba yi-4K.
Ekubeni i-4K yamkelwa yimarike ngokubanzi ngokulula kunye nesantya esimangalisayo, kuyavakala ukuba i-HDR iya kulandela ikhosi efanayo ukuya phambili.Sinokuthelekisa i-HDR vs. SDR imini yonke kodwa nokuba i-HDR ilungile okanye ayilunganga kuwe ekugqibeleni iya kuhla kumava akho obuqu.Okwangoku, zive ukhululekile ukujonga uluhlu lwe-ViewSonic lwe-HDR-ehambelana ne-ColorPro esweni kwaye okanye ungene nzulu kwihlabathi lokulungiswa kombala kunye nokuhlelwa kombala.
Ngethamsanqa kubo bonke abamkeli bokuqala phaya, iimveliso ze-HDR akunzima ukuza nazo.Izibonelelo ze-HDR zide zandise kumdlalo ngokukuvumela ukuba ubone iinkcukacha ezithe kratya kwimidlalo yakho ukuze uzive ufanelekile.
Kuthekani ukuba i-4K HDR ibonakala ibuthuntu kwaye ihlanjiwe xa idlala?
Xa kuthelekiswa ne-SDR (uluhlu oluguquguqukayo oluqhelekileyo), i-HDR inokwenza ividiyo yakho icace ngakumbi kwaye ifane nobomi ngenxa yoluhlu olubanzi lwemibala kunye nobunzulu.Ukanti, akukho nto igqibeleleyo.Nangona izixhobo zevidiyo ze-4K HDR zithengiswa kakhulu, iiTV ze-SDR ezingenakubalwa, iimonitha, iiprojektha, idesktop kunye neefowuni zisasebenza.
Ke nanku umbuzo: xa ujonga i-4K HEVC HDR 10-bit ividiyo kwi-HDR engaxhaswanga isiboniso, ividiyo ye-HDR iya kuphulukana noluhlu lombala wayo wokuqala kwaye ithobe ukuqaqamba kombala kunye nokugcwala.Wonke umfanekiso wevidiyo uya kuba ngwevu.Yiloo nto esiqhele ukuyibiza ngombala ohlanjiweyo.
Kumzamo wokudlala kwakhona ividiyo ye-HDR ye-10-bit kwizixhobo ze-SDR, kuya kufuneka uguqule i-HDR ibe yi-SDR kuqala ukuze uphelise umba wombala ohlanjiweyo.KwayeI-EaseFab Video Converteryenye yeendlela eziphezulu zokuguqula naziphi na iividiyo ze4K HDR zibe SDRkwi-4K / 1080p, i-HEVC ukuya kwi-H.264 ngaphandle kokulahleka komgangatho obonakalayo ekukhanyeni, umbala, umahluko kunye nokunye.Funda ngakumbi malunga neempawu zayo eziphambili:
◉ Yamkela zonke iintlobo zeevidiyo ze-4K HDR, akukhathaliseki nokuba zivela phi kwaye zeziphi ifomathi yokufaka iikhowudi eziyisebenzisayo.
◉ Guqula iividiyo ze-4K HDR zibe yiMP4, H.264, HEVC, MOV, AVI, FLV, iPhone, iPad, HDTV, Xbox, PS4 kunye ne-420+ yeeprofayile ezicwangcisiweyo.
◉ Cinezela isisombululo se-4K ukuya kwi-1080p / 720p okanye i-HD ephezulu ukuya kwi-4K ngokutyibilikayo ngaphandle kokulahlekelwa ngumgangatho wokubonwayo.
◉ Isantya esiphezulu sokuguqula ividiyo kunye ne-100% yomgangatho ogcinwe ngenkxaso yokukhawulezisa i-hardware kunye ne-injini ekumgangatho ophezulu.
Ixesha lokuposa: Aug-26-2021