I RGB Umbala ezahlukeneyo?

Maxa wambi, phantse bonke bafumana umsebenzisi computer avareji kukho imfuneko ukuqonda ukuba yintoni na imodeli umbala. Olu lwazi kwakhona kuluncedo ukwandisa imimango.

Ngoko ke, phantsi imodeli umbala ngokuqhelekileyo kakuhle into enjalo abstract, apho umbala ngalinye limelwe iseti yamanani. Ngaba olu hlobo ongumzekelo Kakade ke, uneempawu zawo kunye nobuthathaka. imodeli Umbala unxulunyaniswa ulwimi. Ngokomzekelo, igama elithi "itheyibhile" ibhalwe zonke iilwimi, kwaye izandi ezahlukeneyo, kodwa umthwalo kwisemantiki yedwa.

Kufuneka kuqatshelwe ukuba namhlanje kukho kwahluka ezininzi iimodeli umbala, kodwa kweli nqaku siza kuqwalasela kuphela umbala RGB.

indaba

Ngowe-1861, Maxwell wenza isindululo umdla ukusebenzisa lonke unendlela yokuvelisa umfanekiso umbala eqhelekileyo, apho kamva baba shirokoizvesten njenge "additive ezo imibala." lenyuswa ukuba kuthetha imibala fusion aqhelekileyo phantsi additive inkqubo umbala ngokongeza ngalinye abamnyama. Inkqubo additive ke phantsi kwemiqathango ethile yahlulwe labona kunye hardware-oxhomekeke.

Sele 1931 inkqubo umbala RGB iye ezantsi ngempumelelo. phezu cula iKomishoni International uye wathabatha isithuba umbala "neCie 1931 xyz", egqalwa isiseko unanamhla.

Kuqala kwinto zonke, siphawula ukuba imibala imodeli RGB yenye yezona ethandwa ngalo mzuzu. Kulo mzekelo, imibala RGB zibonwa ngokusebenzisa bemilo emithathu ngemibala: obomvu (Red), oluhlaza (Blue) kunye eluhlaza (Green). Nangona kunjalo, kukho iindidi ezimbini kule modeli: imodeli bit ezisibhozo, esicacisa inani imibala kumqolo ukusuka kwi-0 ukuya 256, yaye shestnadtsatibitnaya apho RGB umbala azibekele amanani, kodwa ukusuka kwi-0 ukuya ff.

Umahluko omkhulu imifuziselo data kukuba kwimeko yangaphambili, kwisiseko (main) umbala nganye yahlukile kwezinye kusetyenziswa isikali eyahlukileyo, kwaye kwinguqulelo yesibini - nombala kuqaliswa ngqo.

RGB imodeli umbala osemqoka ukuba kukho umbala omtsha lufumaneka ngokongeza abangasekhoyo esele ikhona imibala yokuqala, oko kukuthi, kukho silandelelaniswe kakuhle lwabo "ngokuxuba '.

Kubalulekile ukuba uqaphele ukuba le modeli isoloko isetyenziswa ngendlela wokwamanani, kodwa hayi ezibonwayo. Ngaphezu koko, khangela ezibonwayo esebenzisa iimodeli ezininzi ezahlukeneyo umbala. Eyona nto kukuba umbala imodeli RGB esizibonayo ityhubhu encinane ezinemilinganiselo emithathu, nto leyo elula ngokwaneleyo ukusebenzisa emsebenzini, umzekelo, wenkqubo okanye umyili.

Kakade ke, kulo mzekelo, RGB uye kuneengxaki zako. Eyona nto ibalulekileyo - ukuxhomekeka ye yangoku iintsimbi umsebenzisi. Eyona nto kukuba umfanekiso omnye esweni ezahlukeneyo khangela ezahlukeneyo (ezahlukene quality). monitor nganye usebenzisa i ekuthiwa phosphor - kuyinto material ekhethekileyo oguqula amandla wendele ukukhutshwa ekukhanyeni njengesiqhelo, ke ngoko, ukuba umgangatho lwesiyobisi kwaye zizakuxhomekeka umfanekiso kamva ziboniswa.