HDR vs SDR: Qhov txawv yog dab tsi?Puas yog HDR Tsim Nyog Kev Lag Luam Yav Tom Ntej?

HDR vs SDR: Qhov txawv yog dab tsi?Puas yog HDR Tsim Nyog Kev Lag Luam Yav Tom Ntej? 

Koj puas tau hnov ​​​​txog HDR?Niaj hnub no HDR tau tshwm sim nyob txhua qhov chaw hauv peb lub neej thiab peb yuav tau txais HDR cov ntsiab lus hauv xov tooj ntawm tes, camcorder, streaming cov kev pabcuam xws li YouTube, Netflix, lossis 4K UHD Blu-duab tshav DVD.Yog li, HDR yog dab tsi?Nws txawv ntawm SDR li cas?Vim li cas nws tseem ceeb rau koj?Kab lus no yuav teb tag nrho koj cov lus nug.

Cov ntsiab lus:

Part 1: HDR thiab SDR yog dab tsi?

Part 2: HDR vs SDR Piv

Ntu 3: Ob Qhov Tseem Ceeb HDR Standards: Dolby Vision, HDR10 thiab HDR10+

Part 4: Puas yog koj qhov teeb tsa muaj peev xwm ua si HDR?

Part 5: Puas tsim nyog Upgrading rau HDR?

Ntu 6: Yuav ua li cas yog tias 4K HDR zoo li npub thiab ntxuav tawm thaum ua si?

Part 1: HDR thiab SDR yog dab tsi?

SDR, lossis Standard Dynamic Range, yog tus qauv tam sim no rau cov yeeb yaj kiab thiab cov yeeb yaj kiab.SDR piav qhia cov duab lossis yees duab siv lub teeb liab gamma nkhaus.Cov pa gamma nkhaus yog raws li qhov txwv ntawm cathode ray tube (CRT) uas tso cai rau lub siab tshaj plaws luminance ntawm 100 cd / m2.

HDR, sawv rau High Dynamic Range, yog cov txheej txheem kev yees duab uas ntes, txheej txheem, thiab rov tsim cov ntsiab lus raws li qhov nthuav dav ntawmob qho tib si cov duab ntxoov ntxoo thiab qhov tseem ceeb ntawm ib qho chaw tau nce.Thaum HDR tau siv hauv kev yees duab yav dhau los, nws tsis ntev los no tau dhia mus rau smartphones, TVs, saib, thiab ntau dua.

Part 2: HDR vs. SDR Piv: Qhov txawv ntawm HDR thiab SDR

SDR tsuas yog txwv los ntawm nws lub peev xwm los tsuas yog sawv cev ib feem ntawm qhov dynamic ntau yam uas HDR muaj peev xwm.HDR khaws cov ntsiab lus hauv qhov xwm txheej uas qhov sib piv ntawm tus saib yuav ua rau muaj kev cuam tshuam.SDR, ntawm qhov tod tes, tsis muaj qhov kev txawj ntse no.Qhov sib txawv loj tshaj plaws nyob rau hauv qhov ntau ntawm cov xim gamut thiab brightness.Koj paub, SDR tso cai rau cov xim gamut ntawm sRGB thiab qhov ci ntawm 0 txog 100nits.Whereas HDR muaj cov xim dav dua mus txog DCI - P3, ci ntsa iab sab sauv ntawm qhov ci thiab tsaus qis qis ntawm qhov ci.Nyob rau tib lub sijhawm, nws txhim kho tag nrho cov duab zoo nyob rau hauv cov ntsiab lus ntawm qhov sib piv, greyscale daws teeb meem thiab lwm qhov ntev, nqa ntau qhov kev paub dhau los rau tus neeg paub txog.

Txhawm rau muab nws yooj yim, thaum sib piv HDR vs. SDR, HDR tso cai rau koj pom ntau qhov nthuav dav thiab xim hauv scenes nrog ntau qhov sib txawv.Qhov ntawd txhais tau tias HDR ci dua SDR.HDR tso cai rau koj pom ntau cov ntsiab lus thiab xim hauv scenes.HDR yog qhov zoo tshaj hauv cov ntsiab lus no:

◉ Brightness:HDR tso cai rau qhov ci ci sab saud mus rau 1000 nits thiab qis dua rau qis dua 1 nit.
◉ Xim gamut:HDR feem ntau siv P3, thiab txawm tias Rec.2020 xim gamut.SDR siv Rec.709 feem ntau.
◉ Xim qhov tob:HDR tuaj yeem yog 8-ntsis, 10-ntsis thiab 12-ntsis xim qhov tob.Thaum SDR feem ntau yog 8-ntsis, thiab tsawg heev siv 10-ntsis.

Ntu 3: Ob Qhov Tseem Ceeb HDR Standards: Dolby Vision, HDR10 thiab HDR10+

Qhov tseeb, tsis muaj qhov kawg txhais ntawm HDR qauv.Muaj ob tus qauv tseem ceeb siv niaj hnub no, Dolby Vision thiab HDR10.Ntxiv mus, nws yog HDR10+ hom tshiab, uas yog lub hom phiaj los qhia dynamic HDR rau HDR10 tus qauv thaum tseem tshuav tsis muaj nuj nqis.Peb yuav mus rau qhov sib txawv ntawm txhua ntawm ob lub ntsiab HDR hom hauv qab no.

Dolby Vision

Dolby Vision yog tus qauv HDR uas yuav tsum tau saib xyuas kom tau tsim tshwj xeeb nrog Dolby Vision hardware nti.Muaj tus nqi them nqi ntawm Dolby Vision, txog $ 3 rau txhua lub TV.Zoo li HDR10, Dolby Vision siv Rec.2020 dav xim gamut, 1000 nits ntawm qhov ci, tab sis nws siv 12-ntsis xim qhov tob thiab txhawb nqa cov ntaub ntawv cov ntaub ntawv dynamic.

HDR 10

HDR10 yog tus qauv qhib, thiab koj tsis tas yuav them cov nuj nqis los siv nws.Tus lej "10" sawv cev rau 10 ntsis xim qhov tob.Ntxiv rau qhov no, HDR10 kuj pom zoo kom siv dav gamut Rec.2020, 1000 nits ntawm brightness, thiab static data processing mode.

HDR10 yog tus qauv HDR tshaj plaws uas yuav luag txhua lub tuam txhab TV loj thiab cov chaw muab kev tshaj tawm, xws li Sony, Disney, 20th Century Fox, Warner Bros., Paramount, Universal, thiab Netflix txais HDR10 los tsim 4K UHD Blu ray disks.Tsis tas li ntawd, cov khoom siv xws li Xbox Ib, PS4, Apple TV kuj txhawb HDR10.

HDR10 vs Dolby Vision - Qhov txawv yog dab tsi?

HDR10 thiab Dolby Vision yog ob hom HDR tseem ceeb.Qhov txawv yog tias HDR10 yog qhov qhib-tus qauv thiab tsis yog tus tswv, thaum Dolby Vision xav tau daim ntawv tso cai thiab tus nqi los ntawm Dolby.

Thiab thaum Dolby Vision tam sim no muaj peev xwm tsim tau cov duab zoo dua, tsis muaj TVs uas tuaj yeem ua kom zoo dua ntawm qhov nws muab tsis yog HDR10.

Txawm li cas los xij, Dolby Vision muab cov duab zoo dua, feem ntau yog vim nws cov metadata dynamic.

HDR10+

Raws li tau hais los saum no, muaj lwm hom HDR10+.HDR10+ yog tus qauv HDR teeb tsa los ntawm Samsung rau Dolby Vision, uas yog sib npaug rau lub zeem muag hloov pauv ntawm HDR10.Zoo ib yam li Dolby Vision, HDR10+ txhawb nqa cov ntaub ntawv dynamic cov qauv, tab sis HDR10+ yog tus qauv qhib, aiming kom tau txais kev pom zoo ntawm tus nqi qis.

Txog tam sim no, HDR10 yog tus nqi ntau dua thiab nthuav dav, thaum Dolby Vision yog qhov kev xaiv hwm.Thaum lub sijhawm sau ntawv no, DR10+ cov ntsiab lus tsuas yog muaj nyob rau ntawm ob peb qhov kev pabcuam streaming (xws li Amazon) thiab discs, tab sis ntau thiab ntau lub TV tau pib txhawb HDR10+.

Part 4: Puas yog koj qhov teeb tsa muaj peev xwm ua si HDR?

Thaum koj tau txais koj cov ntsiab lus HDR cued, txawm nws yog HDR video lossis HDR game, koj yuav tsum xyuas kom meej tias koj qhov teeb tsa muaj peev xwm nthuav tawm cov ntsiab lus HDR.

Thawj kauj ruam yog ua kom paub tseeb tias koj daim npav graphics txhawb HDR.

HDR tuaj yeem tso tawm tawm ntawm HDMI 2.0 thiab DisplayPort 1.3.Yog tias koj GPU muaj ob qho ntawm cov chaw nres nkoj no ces nws yuav tsum muaj peev xwm ua kom pom cov ntsiab lus HDR.Raws li txoj cai ntawm tus ntiv tes xoo, tag nrho Nvidia 9xx series GPU's thiab tshiab dua muaj HDMI 2.0 chaw nres nkoj, zoo li txhua daim npav AMD los ntawm 2016 mus ntxiv.

Raws li deb li koj cov zaub mus, koj yuav tsum tau ua kom paub tseeb tias nws kuj muaj peev xwm txhawb HDR cov ntsiab lus.HDR-compatible zaub yuav tsum muaj qhov tsawg kawg nkaus ntawm Full HD 1080p daws teeb meem.Cov khoom xws li Asus ROG Swift PG27UQ, Acer Predator X27, Alienware AW5520QF yog cov piv txwv ntawm 4K saib nrog HDR10 cov ntsiab lus txhawb nqa.Cov kev soj ntsuam no tseem ua rau cov xim raug rau hauv qhov sib npaug hauv kev sim kom paub tseeb tias cov duab ntawm lub vijtsam zoo li muaj tseeb rau lub neej li sai tau.

Yuav Ua Li Cas Tau Txais Cov Ntsiab Lus HDR

Hais txog streaming, Netflix thiab Amazon Prime txhawb HDR ntawm Windows 10. Raws li rau lwm cov ntsiab lus HDR, Sony, Disney, 20th Century Fox, Warner Bros., Paramount, Universal, thiab Netflix txhua tus siv HDR10 los tsim 4K UHD Blu ray cov ntsiab lus hauv discs.Lossis koj tuaj yeem sau koj tus kheej 4K HDR cov ntsiab lus nrog mobile, GoPro, DJI, camcorder thiab ntau dua.

Part 5: Puas tsim nyog Upgrading rau HDR?

Yog tias koj tab tom txiav txim siab dhia mus rau HDR, tej zaum koj yuav xav tsis thoob: Puas yog HDR kev nqis peev zoo?Yuav High Dynamic Range thev naus laus zis puas yuav tawm mus?

Txawm hais tias qhov tseeb, tsis muaj dab tsi yog 100% tseeb, HDR thev naus laus zis muaj txiaj ntsig zoo rau nws.Tam sim no, nws cov thev naus laus zis tseem ceeb tau khi ze rau qhov kev daws teeb meem ultra-siab, txwv tsis pub hu ua 4K.

Txij li thaum 4K tau txais los ntawm kev lag luam dav dav nrog qhov yooj yim thiab nrawm, nws sawv rau qhov laj thawj tias HDR yuav ua raws li tib yam kev kawm mus tom ntej.Peb tuaj yeem sib piv HDR vs SDR txhua hnub tab sis seb HDR puas zoo rau koj thaum kawg yuav nqes los rau koj tus kheej kev paub.Txog tam sim no, xav tias dawb los tshawb txog ViewSonic qhov ntau ntawm HDR-tshaj ColorPro saib thiab lossis dhia tob rau hauv lub ntiaj teb ntawm kev kho xim thiab xim xim.

Hmoov zoo rau tag nrho cov neeg siv khoom thaum ntxov nyob rau ntawd, HDR cov khoom tsis nyuaj los ntawm.Cov txiaj ntsig ntawm HDR txawm txuas mus rau hauv kev ua si los ntawm kev tso cai rau koj pom cov ntsiab lus ntxiv hauv koj cov kev ua si kom muaj kev xav zoo dua.

Yuav ua li cas yog tias 4K HDR zoo li npub thiab ntxuav tawm thaum ua si?

Piv nrog rau SDR (tus qauv dynamic ntau), HDR tuaj yeem ua rau koj cov vis dis aus ntau dua thiab zoo li lub neej ua tsaug rau ntau yam xim thiab qhov tob.Txawm li cas los xij, tsis muaj dab tsi zoo tag nrho.Txawm hais tias 4K HDR cov khoom siv video muag khoom tau nce zuj zus, suav tsis txheeb SDR TVs, saib, projectors, desktop thiab xov tooj tseem siv tau.

Yog li ntawm no los lo lus nug: thaum koj saib 4K HEVC HDR 10-ntsis video ntawm HDR cov zaub tsis txhawb nqa, HDR video yuav poob nws cov xim qub thiab txo cov xim ci & saturation.Tag nrho cov duab video yuav dhau los ua grey.Qhov ntawd yog qhov peb feem ntau hu ua xim ntxuav tawm.

Nyob rau hauv kev sib tw rau playback HDR 10-ntsis video ntawm SDR pab kiag li lawm, koj yuav tsum tau hloov HDR rau SDR ua ntej kom tshem tawm qhov teeb meem xim ntxuav.ThiabEaseFab Video Converteryog ib txoj hauv kev saum toj kawg nkausHloov tej 4K HDR yeeb yaj duab rau SDRhauv 4K / 1080p, HEVC rau H.264 yam tsis muaj qhov pom kev zoo ntawm qhov ci, xim, qhov sib piv thiab ntau dua.Kawm paub ntau ntxiv txog nws cov yam ntxwv tseem ceeb:

◉ Txais txhua yam ntawm 4K HDR cov yeeb yaj kiab, txawm lawv tuaj qhov twg los thiab hom ntawv twg lawv siv.
◉ Hloov 4K HDR yeeb yaj duab rau MP4, H.264, HEVC, MOV, AVI, FLV, iPhone, iPad, HDTV, Xbox, PS4 thiab 420+ preset profiles.
◉ Muab 4K daws teeb meem rau 1080p / 720p lossis nce qib HD rau 4K smoothly yam tsis muaj qhov pom kev zoo.
◉ Super-ceev video converting ceev & 100% zoo tseg nrog kev txhawb nqa ntawm kho vajtse acceleration thiab high-zoo engine.