Ndeipi iyo lab color color nzvimbo uye inosiyana sei neLCH?

August 24, 2024

Ndeipi iyo lab color color nzvimbo uye inosiyana sei neLCH?

Iyo Lab color Space (CieL) uye lch color Space (Cielch) ndiwo ese maviri mavara mavara anoenderana nekuona kwevanhu, asi ivo vakasiyana manzwiro avanomiririra mavara.

Lab color nzvimbo

Iyo lab color nzvimbo ine zvikamu zvitatu:

L (mwenje): inomiririra kupenya kwerudzi, kubva pa0 kusvika ku100.

A (Tsvuku-girini): inomiririra chinzvimbo pakati petsvuku uye yakasvibira, ine tsika dzakanaka dzinoratidza tsika dzvuku uye dzisina kunaka dzinoratidza girini.

b

Mukana weiyo lab color nzvimbo ndeye rusununguko rusununguko rwekusununguka, kubvumira rondedzero yakakwana yemavara ese anokwanisika neziso remunhu
Lch color nzvimbo

Iyo lch colour nzvimbo inotorwa kubva kuLab color color Space uye inoshandisa marongero ekuronga kumiririra mavara mavara zvakanyanya. Iyo ine zvikamu zvinotevera:

L (mheni): yakafanana neyakawirwa-lab color nzvimbo, inomiririra kupenya kwerudzi.

C (chroma): inomiririra iyo saturation kana kuwedzera kwemavara.

h (hue): inomiririra chinzvimbo chemuvara pane ruvara rwevhiri remuvara, kubva pa0 kusvika ku0 kusvika ku360 degrees.

Iyo lch colour nzvimbo inobatsira nekuti inowedzera zvakanyanya nehurongwa hwezuva nezuva dzerutsananguro, kuita kuti ruramisiro yeruramisiro ive nyore kunzwisisa uye kutonga
Misiyano

Mumiriri:

Lab: inoshandisa carsian inoronga kumiririra ruvara, yakakamurwa kuita mwenje (l), tsvuku-girini (a), uye yero-bhuruu (b)

Lch: inoshandisa marongero ePolar kumiririra ruvara, akapatsanurwa kuita mwenje (l), chroma ©, uye hue (h).

Intuitive:

Lab: Yakakodzera kwazvo yesainzi uye technical application, kupa tsananguro chaiyo yemavara.

Lch: Zvakawanda intuitive kune vanhu vanoona vanhu uye tsanangudzo dzemazuva ese, zvichiita kuti zvive nyore kunzwisisa.

Zvishandiso:

Lab: yakashandiswa zvakanyanya mumufananidzo kugadzirisa, kudhinda, uye mavara manejimendi.

Lch: inowanzo shandiswa mukugadziriswa kwemavara uye kufananidza, yakakodzera kune vatambi uye zviitiko zvinoda kurondedzerwa kwenzara

Maitiro ekushandura lab kune lch

Kushandura lab color space tsika kuti lch mavara mavara, tevera matanho aya:

Chiedza (l): Iyo mwenje (l) kukosha kwakafanana mune zvese lab uye lch.

Chroma

C = sqrt (a ^ 2 + b ^ 2)

Hue (H): Change HUE (H) uchishandisa arcatchent yeB yakakamurwa ne, uye shandura mhedzisiro yacho madhigirii.

H = Arctan (B / A) * (180 / π)

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Zvadaro

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Author:

Mr. CHNSpec

E-mail:

chnspec@colorspec.cn

Phone/WhatsApp:

+86 13758201662