HSV yog dab tsi (Hue, Saturation, Value) Xim qauv?

Cov txheej txheem:

HSV yog dab tsi (Hue, Saturation, Value) Xim qauv?
HSV yog dab tsi (Hue, Saturation, Value) Xim qauv?
Anonim

RGB (liab, ntsuab, xiav) xim qauv yog txoj kev nrov tshaj plaws los sib xyaw thiab tsim cov xim. Yog tias koj cuam tshuam nrog kev lag luam luam ntawv, koj paub txog CMYK (cyan, magenta, daj, qhov tseem ceeb). Tej zaum koj yuav tau pom HSV (xim, saturation, tus nqi) hauv cov xim xaiv ntawm koj cov duab software. Cov no yog cov tswv yim uas piav txog txoj kev xim sib txuas los tsim cov spectrum peb pom.

Image
Image

Tsis zoo li RGB thiab CMYK, uas siv cov xim thawj, HSV yog ze rau qhov uas tib neeg pom xim. Nws muaj peb yam: xim, saturation, thiab tus nqi. Qhov chaw xim no piav qhia cov xim (xim lossis xim) raws li lawv qhov ntxoov ntxoo (saturation lossis grey) thiab lawv qhov ci ci. Qee cov xim xaiv, zoo li ib qho hauv Adobe Photoshop, siv cov lus hais HSB, uas hloov lub sij hawm "brightness" rau "tus nqi," tab sis HSV thiab HSB xa mus rau tib xim qauv.

Yuav siv HSV Xim Qauv

Lub HSV xim lub log qee zaum tshwm sim li lub khob hliav qab lossis lub tog raj kheej, tab sis ib txwm nrog peb yam:

Hue

Hue yog qhov xim ntawm tus qauv, qhia ua tus lej ntawm 0 txog 360 degrees:

  • Red poob ntawm 0 txog 60 degrees.
  • Daj poob ntawm 61 txog 120 degrees.
  • Green poob ntawm 121 txog 180 degrees.
  • Cyan ntog ntawm 181 txog 240 degrees.
  • Blue ntog ntawm 241 txog 300 degrees.
  • Magenta ntog ntawm 301 txog 360 degrees.

Saturation

Saturation piav qhia txog qhov grey hauv ib qho xim, ntawm 0 txog 100 feem pua. Txo cov khoom no mus rau xoom qhia ntau dua grey thiab ua rau cov nyhuv faded. Qee zaum, saturation tshwm raws li qhov ntau ntawm 0 txog 1, qhov twg 0 yog grey, thiab 1 yog xim thawj.

Tus nqi (lossis Brightness)

Tus nqi ua haujlwm ua ke nrog saturation thiab piav qhia qhov ci lossis qhov hnyav ntawm cov xim, los ntawm 0 txog 100 feem pua, qhov twg 0 yog dub tag, thiab 100 yog qhov ci tshaj plaws thiab nthuav tawm cov xim tshaj plaws.

Siv HSV

Cov neeg tsim qauv siv HSV xim qauv thaum xaiv cov xim rau cov xim lossis tus cwj mem vim HSV zoo dua piv rau tib neeg cuam tshuam li cas xim dua li RGB xim qauv.

Lub HSV xim lub log kuj txhawb nqa cov duab zoo. Txawm hais tias tsis tshua muaj neeg paub zoo dua li nws cov kwv tij RGB thiab CMYK, HSV txoj hauv kev muaj nyob rau hauv ntau cov duab kho kom zoo nkauj software.

Xaiv HSV xim pib nrog xaiv ib qho ntawm cov xim muaj thiab tom qab ntawd kho qhov ntxoov ntxoo thiab qhov ci ci.

Pom zoo: