Kungani Ama-Broadcast Monitors Edinga Ukulinganiswa Kombala?
Izikrini zokusakaza zisebenza njengemishini yokubhekisela eyinhloko kuyo yonke imisebenzi yokuthwebula ividiyo, ukuhlela ngemuva kombala kanye nokusebenza kokusakaza, kuhloswe ukufeza ukubuyiselwa okunembile kwesithombe esikrinini kokuthi "lokho okubonayo yilokho okutholayo". Amaphaneli okubonisa ahlushwa ngokungenakugwenywa ukushintsha kombala, ukukhanya kanye nokwempunga ngenxa yesikhathi sesevisi, izinguquko zokushisa kanye nokuguga kwemishini. Ngaphandle kokulinganiswa okuvamile, amaphutha okubona azokwenzeka ekuqapheni okusethwe kanye nokuhlelwa kombala ngemuva kokukhiqiza.
Uma umsebenzi wokugcina ukhishwa kuma-TV noma ezinkundleni zokusakaza, izinkinga ezifana nokuphambuka kombala, ukukhanya okungalingani kanye nemibala yesikhumba ephikisiwe zizovela, zehluleke amazinga okusakaza futhi ziholele ekuhlulekeni kokusebenza kabusha noma kokuhlola. Okwamanje, ukulinganiswa okujwayelekile kuqinisekisa ukuhambisana kombala ekubambisaneni kweqembu kanye nokuqapha amadivayisi amaningi, kugwema amaphutha ombala aqongelelekayo kuyo yonke isixhumanisi sokukhiqiza.
Izindinganiso Zokulinganisa Okuyinhloko Zabaqaphi Bokusakaza.
Ukulinganiswa kwemonitha yokusakaza kulandela izincazelo ezihlanganisiwe zemboni yokusakaza yomhlaba wonke kanye nezindinganiso zasekhaya ezisemthethweni ezinemingcele eqinile necacile.
Okokuqala, endaweni yombala, izimo zokusakaza ze-SD/HD zamukela ngokuqinile i-Rec.709, izimo ze-4K/8K UHD zisebenza ku-Rec.2020, futhi ukukhiqizwa kwamafilimu kuhambisana ne-DCI-P3 gamut.
Okwesibili, ukuze kube nokunemba kombala, ipharamitha yomehluko wombala oyinhloko i-ΔE inani kumele libe ngaphansi kuka-2, futhi amadivayisi aphezulu ochwepheshe afinyelele ku-ΔE＜1.5 ngokuphambuka kombala okungabonakali emehlweni abantu; iphutha lombala elihlanganisiwe lesixhumanisi sonke sokusakaza lifinyelelwe ku-1.0.
Okwesithathu, ngokukhanya kanye nezinga elimnyama, ukukhanya okujwayelekile kwamamonitha e-HD kungu-300cd/㎡, ukukhanya okuphezulu kwamamonitha e-UHD kungu-≥500cd/㎡, kanye nokukhanya kwezinga elimnyama kungu-≤0.01cd/㎡ ukuqinisekisa imininingwane emsulwa yesithunzi kanye nezendlalelo eziphelele zokugqamisa.
Okwesine, nge-grayscale kanye ne-gamma, ihambisana ngokuqinile nama-gamma curve ahleliwe ane-grayscale efanayo nengachemile, ehambisana nezinga elisemthethweni lokukhiqizwa kwe-UHD TV kanye nokusakaza. Ngaphezu kwalokho, ukulinganiswa kusekela imephu ye-hardware LUT ukukhiya amapharamitha ombala ezingeni le-hardware ukuze kukhishwe isithombe esizinzile nesihlangene.
Umehluko Wombala Oyinhloko Phakathi Kwabaqaphi Bokusakaza kanye Nezibonisi Zabathengi.
Umehluko oyinhloko usekubekweni kwazo: izikrini zokusakaza zibeka phambiliukunemba kombala, kuyilapho izibonisi zabathengi zibeka phambiliisipiliyoni esibonakalayo, ngezinhlobo ezintathu ezihlukile.
Okokuqala, ukuqonda imibala okuhlukile. Izikrini zokusakaza ziphishekela ubuqiniso obuphelele ngaphandle kokulungiswa kombala noma ukuthuthukiswa kokugcwala, okubuyisela idatha yombala wezinto zokuqala engu-100%. Izibonisi zabathengi (amakhompyutha, ama-TV asekhaya) zikhanyisa ngokuzenzakalelayo izithombe, zandise ukugcwala futhi zicijise imibala ukuze zithuthukise ulwazi lokubuka ukuzijabulisa, okuholela ekuphazamisekeni kombala wendabuko.
Okwesibili, ukunemba okuhlukile kanye nokuzinza. Isikrini ngasinye sokusakaza silinganiswa ngefektri ngasinye ngasinye futhi sisekela ukulinganiswa kwehadiwe okuvamile ngenani eliphansi kakhulu le-ΔE kanye nokukhanya okuzinzile kwesikhathi eside, i-gamut kanye ne-grayscale. Izibonisi zabathengi zisekela kuphela ukuguquguquka kwe-gamut okuyisisekelo ngaphandle kwezinqubo zokulinganisa zobungcweti, okubonisa umehluko omkhulu wombala, ukufana kombala wesikrini okungekuhle kanye nokushintsha kombala okubucayi kwesikhathi eside.
Okwesithathu, izimo ezahlukene zohlelo lokusebenza. Amadivayisi okusakaza akhonza ukukhiqizwa kobungcweti kanye nokusakaza, elandela ngokuqinile amazinga okusakaza ukuqinisekisa ukuthi umkhiqizo uhambisana kahle kumapulatifomu amaningi. Amadivayisi abathengi angowokuzijabulisa kwansuku zonke ehhovisi kanye nokulalelwayo nokubukwayo ngaphandle kwemininingwane yombala ehlanganisiwe, okuholela ekuhlukeni okukhulu kokuboniswa kwezinto ezifanayo kumadivayisi ahlukene, ngakho-ke awakwazi ukusetshenziswa njengezinkomba zokukhiqiza.
Isikhathi sokuthunyelwe: Julayi-14-2026