RGB inyaya yekuwedzera uye inosanganiswa nechiedza, CMYK ishoma uye inosanganiswa neiniki. Kushandura pakati pawo ndicho danho rinotorwa chero dhizaini yescreen isati yadhindwa.
Maitiro ekuverenga RGB kuenda ku CMYK
- Normalisa machannels: patsanura R, G uye B ne255.
- Tora channel yakakura yakajairidzwa wobva waiverenga key K = 1 − max.
- Buda cyan, magenta uye yellow nekubvisa chikamu cheblack ichocho: C = (1 − R − K) / (1 − K), nezvimwewo.
- Shandura ese mana value kuita percentages pakati pe0 ne100.
Muenzaniso wakashanda
Ichi chikokota chenhamba chisina color profile. Zvitoro zvekudhinda zvinoshandisa ICC profiles uye ink limits, saka manhamba aya chinhu chakanyatsoreferenzi, kwete separation yakagadzirira press.
RGB and CMYK explained
Chii chinonzi RGB?
RGB inotsanangura ruvara sezviteshi zvitatu zverambi — red, green ne blue — imwe neimwe kubva pa 0 kusvika 255. Inoratidza maitiro anoshanda masikirini: ese matatu pa255 anopa chena, ese pa0 anopa nhema. RGB ndiyo sarudzo yakakodzera paunoda kuverenga nemavara, uye rgba() inowedzera kuvharika pamusoro.
- Syntax:
- rgb(R, G, B)
- Range:
- 0–255 per channel
- Yakanakira:
- code, canvas, transparency with rgba()
Chii chinonzi CMYK?
CMYK imodeli yemainki mana inoshandiswa pakudhinda: cyan, magenta, yellow uye key (black), imwe neimwe seyero kubva pa0 kusvika 100%. Inki inobvisa chiedza panzvimbo pekuchiburitsa, saka CMYK ine mavara mashoma pane ayo anoonekwa pascreen — ndosaka mavara anopenya pascreen achiwanzotaridzika asina kusimba kana adhindwa.
- Syntax:
- cmyk(C%, M%, Y%, K%)
- Range:
- 0–100% per ink
- Yakanakira:
- print, packaging, press-ready artwork
RGB to CMYK reference table
Mavara eCSS anowanzo shandiswa, akashandurwa kubva kuRGB kuenda kuCMYK.
| Ruvara | RGB | CMYK |
|---|---|---|
| black | rgb(0, 0, 0) | cmyk(0%, 0%, 0%, 100%) |
| white | rgb(255, 255, 255) | cmyk(0%, 0%, 0%, 0%) |
| red | rgb(255, 0, 0) | cmyk(0%, 100%, 100%, 0%) |
| lime | rgb(0, 255, 0) | cmyk(100%, 0%, 100%, 0%) |
| blue | rgb(0, 0, 255) | cmyk(100%, 100%, 0%, 0%) |
| yellow | rgb(255, 255, 0) | cmyk(0%, 0%, 100%, 0%) |
| orange | rgb(255, 165, 0) | cmyk(0%, 35%, 100%, 0%) |
| teal | rgb(0, 128, 128) | cmyk(100%, 0%, 0%, 50%) |
| purple | rgb(128, 0, 128) | cmyk(0%, 100%, 0%, 50%) |
| gray | rgb(128, 128, 128) | cmyk(0%, 0%, 0%, 50%) |