z

Buku Lotsogolera Zowunikira Zofunikira za Utoto

sRGB ndi malo odziwika bwino amitundu omwe amagwiritsidwa ntchito pazinthu zogwiritsidwa ntchito pa digito, kuphatikizapo zithunzi ndi makanema a SDR (Standard Dynamic Range) omwe amawonedwa pa intaneti. Kuphatikiza pa masewera omwe amaseweredwa pansi pa SDR. Ngakhale kuti zowonetsera zokhala ndi gamut yayikulu kuposa iyi zikuchulukirachulukira, sRGB ikadali gawo lotsika kwambiri ndipo malo ambiri amitundu omwe zowonetsera zambiri zimatha kuphimba kwathunthu kapena makamaka. Chifukwa chake, ena angakonde kugwira ntchito mkati mwa malo awa amitundu kaya kusintha zithunzi ndi makanema kapena kupanga masewera. Makamaka ngati zomwe zili mkatizo zikuyenera kugwiritsidwa ntchito ndi omvera ambiri, pa digito.

Adobe RGB ndi malo okulirapo amitundu, opangidwa kuti azitha kuphatikiza mitundu yambiri yodzaza yomwe osindikiza zithunzi ambiri amatha kusindikiza. Pali malo okulirapo opitilira sRGB m'dera lobiriwira la gamut ndi wobiriwira mpaka buluu, pomwe madera ofiira ndi abuluu enieni amagwirizana ndi sRGB. Chifukwa chake pali malo okulirapo opitilira sRGB m'malo apakati amitundu monga cyan, achikasu ndi malalanje. Ichi ndi chisankho chodziwika bwino kwa iwo omwe amasindikiza zithunzi kapena komwe zolengedwa zawo zimathera pazinthu zina zakuthupi. Chifukwa gamut iyi imatha kujambula mitundu yambiri yodzaza yomwe mungakumane nayo m'dziko lenileni, ena amakonda kugwiritsa ntchito malo awa amitundu ngakhale atapanda kusindikiza ntchito yawo. Izi zitha kukhala zofunikira kwambiri popanga zomwe zimayang'ana pa 'zochitika zachilengedwe' ndi zinthu monga masamba obiriwira, thambo kapena nyanja za m'madera otentha. Bola ngati chiwonetsero chomwe chikugwiritsidwa ntchito kuwona zomwe zili mkati chili ndi gamut yokwanira, mitundu yowonjezerayo ingasangalale nayo.

DCI-P3 ndi malo ena amitundu omwe amatanthauzidwa ndi bungwe la Digital Cinema Initiatives (DCI). Ichi ndi cholinga chapafupi chomwe opanga zinthu za HDR (High Dynamic Range) amaganizira. Ndi sitepe yapakati yopita ku mtundu waukulu kwambiri, Rec. 2020, womwe mawonetsero ambiri amapereka chidziwitso chochepa. Malo amitundu si ochuluka ngati Adobe RGB pamitundu ina yobiriwira mpaka yabuluu koma amapereka zowonjezera zambiri kuchokera kumitundu yobiriwira mpaka yofiira ndi yabuluu mpaka yofiira. Kuphatikizapo mitundu yofiira, malalanje ndi yofiirira. Imakhala ndi mitundu yambiri yodzaza kuchokera kudziko lenileni yomwe ikusowa mu sRGB. Imathandizidwanso kwambiri kuposa Adobe RGB, chifukwa chakuti ndi yosavuta kuipeza ndi mayankho ochepa a 'exotic' backlighting kapena magwero a kuwala. Komanso poganizira kutchuka kwa HDR ndi hardware capability zomwe zikukankhira mbali imeneyo. Pazifukwa izi, DCI-P3 imakondedwa ndi ena omwe amagwira ntchito ndi makanema ndi zithunzi za SDR osati zomwe zili mu HDR zokha.

752f1b81


Nthawi yotumizira: Novembala-29-2022