Ezahlukahlukene RGB umbala?

Ngokuhamba kwesikhathi, cishe wonke umuntu wazibonela isilinganiso computer umsebenzisi kunesidingo ukuze aqonde ukuthi yini imodeli umbala. Lolu lwazi futhi iwusizo ukwandisa khathizwe.

Ngakho, ngaphansi imodeli umbala elivame ukuqondwa ngayo into enjalo abstract i, lapho umbala ngamunye imelelwa iqoqo izinombolo. Ingabe lolu hlobo imodeli Yiqiniso, has izici zayo siqu nalapho bebafushane khona. imodeli Color ivame ukuhlotshaniswa ulimi. Ngokwesibonelo, igama elithi "etafuleni" Kulotshweni zonke izilimi, futhi umsindo ezahlukene, kodwa umthwalo semantic wedwa.

Kufanele kuqashelwe ukuthi namuhla kunezinhlobonhlobo umbala onobuhle, kodwa lesi sihloko sizocabangela kuphela umbala RGB.

indaba

Ngo-1861, uMaxwell wenza i isiphakamiso ezithakazelisayo ukusebenzisa lonke indlela ngokukhiqiza esiku umbala isithombe, okuyinto kamuva phathelana shirokoizvesten njengoba "okufakiwe Fusion imibala." It wayiswa kusho ezivamile Fusion imibala ngaphansi okufakiwe uhlelo umbala ngokungeza ngamunye abamnyama. Uhlelo okufakiwe is kunemibandela ihlukaniswe okuqonda kanye hardware nasekuthengeni.

Kakade 1931 RGB umbala yesistimu zilandele izilinganiso ezithile ngempumelelo. ku umbiko we Commission International uye wathatha isikhala semibala "CIE 1931 XYZ", okuyinto kubhekwa base kuze kube yilolu suku.

Okokuqala, siphawula ukuthi imibala e imodeli RGB ingenye ethandwa kakhulu okwamanje. Kulesi imodeli, imibala RGB zibonakala ngokusebenzisa iphrizimu ngemibala emithathu eyisisekelo: obomvu (Red), blue (Blue) kanye oluhlaza (Green). Nokho, kunezinhlobo ezimbili ezingafani kwalesi imodeli: imodeli ayisishiyagalombili-bit, ecacisa inani imibala in the uhla kusuka 0 kuya 256, futhi shestnadtsatibitnaya lapho RGB umbala azibekele izinombolo, kodwa kusuka 0 kuya ff.

The main umehluko idatha amamodeli ukuthi esimweni sangaphambili, ngayinye isizinda (main) umbala kwenye esetshenziswa ngesilinganiso ehlukile, futhi inguqulo yesibili - luhlaza owethulwa ngqo.

RGB imodeli umbala sici ukuthi kukhona umbala entsha etholwe ngokungeza shades etholakalayo kakade nemibala eyinhloko ie, kukhona ezilandelanayo zabo "ngokuxuba".

Kubalulekile wazi ukuthi ngokuvamile leli imodeli isetshenziswa ifomu zezinombolo, kodwa hhayi ezibukwayo. Ngaphezu kwalokho, search ebonwayo usebenzisa umbala onobuhle eziningana ezahlukene. Into wukuthi ezibukwayo RGB imodeli umbala cube elincane Ubukhulu ezintathu, engesiyo elula ngokwanele ukuyisebenzisa emsebenzini, isibonelo, Unicode noma umklami.

Yiqiniso, kule imodeli, RGB has nezihibe. Into ebaluleke kakhulu - ukwencika zamanje hardware umsebenzisi. Into wukuthi isithombe efanayo ngabaqaphi ezahlukene singase sehluke (izinga ezahlukene). qapha ngasinye isebenzisa phosphor okuthiwa - sisetshenziselwa izinto ezikhethekile oguqula amandla ugxile evamile ekushayweni ukukhanya, ngakho-ke, ukuthi izinga ketshezi futhi kuzoncika isithombe kamuva ukuboniswa.