Mawu akuti "kunja" amatanthauza mtundu wosiyanasiyana umene sungathe kubwerekanso mu malo a mtundu wa CMYK wogwiritsira ntchito malonda. Mapulogalamu ojambula zithunzi amapangidwa kugwira ntchito ndi zithunzi mu malo a mtundu wa RGB mu dongosolo lonse lokonzekera.
Malo a mtundu wa RGB ali ndi mitundu yambiri yoonekera kuposa CMYK yomwe imalongosola chifukwa chake mitundu ya RGB imakhala yamdima pamene imasunthira ku CMYK. Mukasindikiza chithunzi chiyenera kubwerekanso ndi inks ndipo izi inks sizingathe kupanga mitundu yofanana yomwe timatha kuona ndi maso chifukwa malo a mtundu wa RGB amagwiritsa ntchito kuwala, osati pigment, kuti apange mtundu.
Chifukwa mtundu wa mtundu umene ukhoza kubweretsedwera ndi inayi ndi yaying'ono kwambiri kuposa zomwe tingathe kuziona, mtundu uliwonse womwe sungakhoze kubweretsedwanso ndi inki umatchulidwa kuti "kunja." Zithunzi zamakono, nthawi zambiri mumakhala ndi machenjezo omwe mumasankha mukasankha mitundu yomwe idzasinthidwe pamene fano litembenuzidwa kuchoka ku malo a mtundu wa RGB omwe akugwiritsidwa ntchito pokonzanso, kumalo osungirako CMYK ogwiritsira ntchito malonda.
Chithunzichi chakumwamba chimakuwonetsani malingaliro omveka bwino omwe amamvetsetsa gamut. Bokosi lakunja liri mtundu wonse wodziwika kwa munthu wamakono, kuphatikizapo mitundu yonse yomwe timatha kuona ndi omwe sitingathe, monga Ultraviolet ndi Infrared.
Bwalo loyamba ndi mitundu 16 miliyoni yomwe imapezeka mujambuko la mtundu wa RGB ndipo bwalo lamkati ndilo mitundu yonse yomwe imatha kubwereranso ndi makina osindikizira. Chimene chiri pakati, chifukwa cha zolinga zonse, ndi dzenje lakuda. Mukasunthira kuchoka pa ngodya ya bokosi kupita ku dontho, mitundu imakhala yakuda. Zimakhala zowala pamene mukuchoka.
Ngati mutenga mtundu mu RGB gamut, iwo adzakhala ndi ofanana mu CMYK gamut koma, ndi kusiyana. Ngati mtundu ukusunthira kumbali imeneyo kumakhala mdima.
Kusinthidwa ndi Tom Green
Zolemba Zithunzi