Kutheni iiMonitha zoSasazo zifuna uLungiso loMbala?
Iimonitha zokusasaza zisebenza njengezixhobo eziphambili zokujonga ividiyo, ukuhlelwa kwemibala emva kombala kunye nemisebenzi yokusasaza, zijolise ekufezekiseni ukubuyiselwa ngokuchanekileyo komfanekiso kwisikrini "oko ukubonayo koko ukufumanayo". Iiphaneli zokubonisa ngokungenakuphepheka ziyachaphazeleka kukutshintsha kombala, ukukhanya kunye nobukhulu obungwevu ngenxa yexesha lenkonzo, utshintsho lobushushu kunye nokuguga kwezixhobo. Ngaphandle kokulinganiswa rhoqo, iimpazamo ezibonakalayo ziya kwenzeka ekubekweni esweni okusetweni kunye nokuhlelwa kwemibala emva kokuveliswa.
Xa umsebenzi wokugqibela ukhutshwa kwiiTV okanye kumaqonga osasazo, iingxaki ezinje ngokuguqulwa kombala, ukukhanya okungalinganiyo kunye neethoni zesikhumba ezigqwethekileyo ziya kuvela, zisilela kwimigangatho yokusasaza kwaye zikhokelele ekutshintsheni umsebenzi okanye ukusilela kophicotho. Okwangoku, ukulinganiswa okusemgangathweni kuqinisekisa ukuhambelana kombala kwintsebenziswano yeqela kunye nokubeka esweni izixhobo ezininzi, kuthintelwe iimpazamo zombala eziqokelelweyo kuyo yonke ikhonkco yemveliso.
Imigangatho yoLungiso oluPhambili lweeMonitha zoSasazo.
Ukulinganiswa kwemonitha yosasazo kulandela iinkcukacha ezidibeneyo zoshishino losasazo lwehlabathi kunye nemigangatho esemthethweni yasekhaya enemilinganiselo engqongqo necacileyo.
Okokuqala, kwindawo yombala, iimeko zokusasazwa kwe-SD/HD zamkela ngokungqongqo i-Rec.709, iimeko ze-4K/8K UHD zisebenza kwi-Rec.2020, kwaye ukuveliswa kwefilimu kuyahambelana ne-DCI-P3 gamut.
Okwesibini, ukuze kufumaneke umbala ochanekileyo, ixabiso le-ΔE eliphambili kufuneka libe ngaphantsi kwe-2, kwaye izixhobo eziphezulu zobungcali zifikelele kwi-ΔE＜1.5 ngokuphambuka kombala okungabonakaliyo emehlweni abantu; impazamo yombala eqokelelweyo yekhonkco lonke losasazo ibekwe kwi-1.0.
Okwesithathu, ngokukhanya kunye nenqanaba elimnyama, ukukhanya okuqhelekileyo kweemonitha ze-HD yi-300cd/㎡, ukukhanya okuphezulu kweemonitha ze-UHD yi-≥500cd/㎡, kunye nokukhanya kwenqanaba elimnyama yi-≤0.01cd/㎡ ukuqinisekisa iinkcukacha zesithunzi esicocekileyo kunye neeleya ezipheleleyo ze-highlight.
Okwesine, kwi-grayscale kunye ne-gamma, ihambelana ngokungqongqo nee-gamma curves ezisasazwayo ezizinzileyo ezine-grayscale efanayo nengakhethi cala, ihambelana nomgangatho osemthethweni wemveliso ye-UHD TV kunye nosasazo. Ukongeza, ukulinganiswa kuxhasa i-hardware LUT mapping ukutshixa iiparameter zombala kwinqanaba le-hardware ukuze kuphume umfanekiso ozinzileyo nodibeneyo.
Umahluko oMbala oPhambili phakathi kweeMonitha zoSasazo kunye neeMboniso zaBathengi.
Umahluko ophambili usekwe kwindawo ezibekwe kuyo: iimonitha zokusasaza zibeka phambiliukuchaneka kombala, ngelixa abathengi bebonisa izinto eziza kuqalaamava okubona, kunye neendidi ezintathu ezikhethekileyo.
Okokuqala, ingqiqo yemibala eyahlukileyo. Iimonitha zokusasaza zilandela ubunyani obupheleleyo ngaphandle kokulungiswa kombala okanye ukuphuculwa kokugcwala, zibuyisela i-100% yedatha yombala wezinto zokuqala. Izibonisi zabathengi (iikhompyutha, iiTV zasekhaya) zikhanyisa imifanekiso ngokuzenzekelayo, zonyusa ukugcwala kwaye zilola imibala ukuze ziphucule amava okubukela ukuzonwabisa, nto leyo ebangela ukugqwetheka kombala wendalo.
Okwesibini, ukuchaneka kunye nozinzo olwahlukileyo. Isikrini ngasinye sosasazo silinganiswa ngumatshini ngamnye kwaye sixhasa ukulinganiswa kwezixhobo zekhompyutha rhoqo ngexabiso eliphantsi kakhulu le-ΔE kunye nokukhanya okuzinzileyo kwexesha elide, i-gamut kunye ne-grayscale. Izibonisi zabathengi zixhasa kuphela uhlengahlengiso olusisiseko lwe-gamut ngaphandle kweenkqubo zokulinganisa zobungcali, ezibonisa umahluko omkhulu wombala, ukufana kombala wesikrini kunye nokutshintsha kombala okuqatha ixesha elide.
Okwesithathu, iimeko ezahlukeneyo zesicelo. Izixhobo zokusasaza zikhonza imveliso yobuchwephesha kunye nokusasaza, zihambelana ngokungqongqo nemigangatho yokusasaza ukuqinisekisa imveliso efanayo kumaqonga amaninzi. Izixhobo zabathengi zenzelwe ukonwabisa iofisi yemihla ngemihla kunye ne-audio-visual kuphela ngaphandle kweenkcukacha zombala ezidibeneyo, nto leyo ekhokelela kumahluko amakhulu okubonisa izinto ezifanayo kwizixhobo ezahlukeneyo, ngoko ke azinakusetyenziswa njengezalathiso zemveliso.
Ixesha leposi: Julayi-14-2026