Udinga ukukhipha umbala opapashwe esikrinini? Ukuguqula i-CMYK iye ku-RGB kukunikeza okufanayo okususelwe ekukhanyeni kweziphesenti ze-inki — amanani angaboniswa yi-monitor, i-mockup noma ikhasi lewebhu.
Indlela okuhunyushwa ngayo CMYK kuya ku-RGB
- Guqula wonke amaphesenti amane abe ama-fraksi phakathi kuka-0 no-1.
- Faka kuqala i-key component: isiteshi ngasinye sikhulu ngo-(1 − K).
- Bala R = 255 × (1 − C) × (1 − K), G = 255 × (1 − M) × (1 − K) kanye ne-B = 255 × (1 − Y) × (1 − K).
- Gingqika isiteshi ngasinye ube inombolo ephelele phakathi kuka-0 no-255.
Isibonelo esisebenzayo
Kulinganiselwa. Isikrini singakhombisa imibala eminingi kunaleyo i-inki engakwazi ukukhiqiza, ngakho umphumela we-RGB uvamise ukubukeka ukhanya kakhulu futhi unomthunzi onamandla kunendatshana ephumile ephepheni.
CMYK no-RGB kuchazwe
Iyini CMYK?
I-CMYK yimodeli yama-inki amane esetshenziswa ekuphrinteni: cyan, magenta, yellow kanye ne-key (black), ngakunye njengesibalo kusuka ku-0 kuya ku-100%. I-inki isusa ukukhanya esikhundleni sokukhipha, ngakho i-CMYK imboza imibala embalwa kunesikrini — yingakho imibala ekhanyayo yesikrini ivame ukubukeka iyinto ephansi uma iphrintiwe.
- Isakhiwo:
- cmyk(C%, M%, Y%, K%)
- Ibanga:
- 0–100% per ink
- Ilungele:
- ukuphrinta, ukupakisha, umsebenzi wokucindezela olungele iphrinta
Iyini RGB?
I-RGB ichaza umbala njengesiteshi sesithathu sokukhanya — red, green kanye ne-blue — ngakunye kusuka ku-0 kuya ku-255. Ikhombisa ukuthi izikrini zisebenza ngempela: zonke ezintathu ku-255 zenza umhlophe, zonke ku-0 zenza mnyama. I-RGB ifanele uma kudingeka ukubala ngombala, kanti i-rgba() yengeza ukuphelelwa ukucacisa.
- Isakhiwo:
- rgb(R, G, B)
- Ibanga:
- 0–255 per channel
- Ilungele:
- ikhodi, canvas, ukuphelelwa ukucacisa nge-rgba()
Ithebula lokubhekisela le-CMYK kuya ku-RGB
Imibala ye-CSS evame ukusetshenziswa, iguqulwe ukusuka ku-CMYK iye ku-RGB.
| Umbala | CMYK | RGB |
|---|---|---|
| black | cmyk(0%, 0%, 0%, 100%) | rgb(0, 0, 0) |
| white | cmyk(0%, 0%, 0%, 0%) | rgb(255, 255, 255) |
| red | cmyk(0%, 100%, 100%, 0%) | rgb(255, 0, 0) |
| lime | cmyk(100%, 0%, 100%, 0%) | rgb(0, 255, 0) |
| blue | cmyk(100%, 100%, 0%, 0%) | rgb(0, 0, 255) |
| yellow | cmyk(0%, 0%, 100%, 0%) | rgb(255, 255, 0) |
| orange | cmyk(0%, 35%, 100%, 0%) | rgb(255, 166, 0) |
| teal | cmyk(100%, 0%, 0%, 50%) | rgb(0, 128, 128) |
| purple | cmyk(0%, 100%, 0%, 50%) | rgb(128, 0, 128) |
| gray | cmyk(0%, 0%, 0%, 50%) | rgb(128, 128, 128) |