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Isikhokelo seeMonitha eziBalulekileyo zoMbala

I-sRGB yindawo enemibala eqhelekileyo esetyenziselwa imidiya esetyenziswa ngedijithali, kuquka imifanekiso kunye nomxholo wevidiyo we-SDR (Standard Dynamic Range) obonwa kwi-intanethi. Kunye nemidlalo edlalwa phantsi kwe-SDR. Ngelixa ii-displays ezine-gamut ebanzi kunale zisanda ukwanda, i-sRGB iseyeyona ndawo iphantsi kakhulu kwaye indawo yemibala uninzi lwee-displays luya kukwazi ukuyigubungela ngokupheleleyo okanye kakhulu. Ngenxa yoko, abanye baya kukhetha ukusebenza ngaphakathi kwesi sithuba semibala nokuba kukuhlelwa iifoto kunye neevidiyo okanye ukuphuhliswa kwemidlalo. Ingakumbi ukuba umxholo uza kusetyenziswa ngabaphulaphuli abaninzi, ngedijithali.

I-Adobe RGB yindawo ebanzi yemibala, eyenzelwe ukuquka imibala etyebileyo enokuprintwa ngabaninzi beeprinta zeefoto. Kukho ulwandiso olukhulu ngaphaya kwe-sRGB kwindawo eluhlaza ye-gamut kunye noluhlaza okwesibhakabhaka, ngelixa iindawo ezibomvu neziluhlaza okwesibhakabhaka zihambelana ne-sRGB. Ke ngoko kukho ulwandiso oluthile ngaphaya kwe-sRGB kwiindawo ezinombala ophakathi ezifana ne-cyan, i-yellows kunye ne-orenji. Olu lukhetho oludumileyo kwabo bagqibela ngokuprinta iifoto okanye apho izinto abazidalileyo ziphelela khona kwezinye izinto ezibonakalayo. Ngenxa yokuba le gamut inokubamba eminye imibala etyebileyo onokuthi uvezwe kuyo kwihlabathi lokwenyani, abanye bakhetha ukusebenzisa le ndawo yemibala nokuba abagqibeli ngokuprinta umsebenzi wabo. Oku kunokuba luncedo ngakumbi ekudalweni komxholo ogxile 'kwiindawo zemvelo' ngezinto ezifana namagqabi aluhlaza, isibhakabhaka okanye ulwandle olushushu. Ukuba nje umboniso osetyenziselwa ukujonga umxholo unegamut ebanzi ngokwaneleyo, loo mibala eyongezelelweyo inokonwatyelwa.

I-DCI-P3 yindawo yombala eyahlukileyo echazwe yi-Digital Cinema Initiatives (DCI). Le yeyona njongo yexesha elifutshane abaphuhlisi bomxholo we-HDR (High Dynamic Range) abayicingayo. Linyathelo eliphakathi eliya kwi-gamut ebanzi kakhulu, i-Rec. 2020, uninzi lwemiboniso olunikezela ngokugubungela okulinganiselweyo kuyo. Indawo yombala ayinkulu njenge-Adobe RGB kwezinye imibala eluhlaza ukuya kwebhlowu kodwa inika ulwandiso olungakumbi kwindawo eluhlaza ukuya kwebomvu kunye nebhlowu ukuya kwebomvu. Kubandakanya obomvu obucocekileyo, iiorenji kunye neepurple. Iquka uluhlu olubanzi lwemibala egcweleyo evela kwihlabathi lokwenyani engekhoyo kwi-sRGB. Ikwaxhaswa kakhulu kune-Adobe RGB, ngokuyinxenye kuba kulula ukuyifezekisa ngezisombululo zokukhanyisa ezingaqhelekanga okanye imithombo yokukhanya. Kodwa ikwanikwa ukuthandwa kwe-HDR kunye nokukwazi kwehardware okutyhalela kuloo ndlela. Ngenxa yezi zizathu, i-DCI-P3 ikhethwa ngabanye abasebenza nomxholo wevidiyo kunye nemifanekiso ye-SDR kwaye kungekuphela nje umxholo we-HDR.

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Ixesha lokuthumela: Novemba-29-2022