Ruzivo rwekutanga rwechromatics-1

一、 Chii chinonzi ruvara

Kubva pamaonero efizikisi, ruvara mhedzisiro yemaonero emunhu echiedza chinooneka. Rudzi runonzwisiswa runotarirwa nehuwandu hwemasaisai echiedza. Light wave imwaranzi yemagetsi ine imwe frequency renji. Hurefu hunoonekwa nemaziso evanhu huri pakati pe380 ~ 780nm.

Ruvara mumunda wefizikisi rinowanzo kutsanangurwa neavelength yechiedza, uye iyo yakatsanangurwa ruvara inonzi Spectral color.

Pane zvinhu zvitatu zvinogona kukanganisa maonero eruvara:

1. Chiedza chinobva;2 Zvinhu zvinoonekwa;3 Observer (munhu)

Kuona kwemavara

• Iyo inopenya simba rechiedza sosi uye kuratidzwa kwezvinhu ndezvechikamu chefizikisi, nepo huropi nemeso zviri mukati mekutsvagisa kwehupenyu, asi ruvara runogara rwakavakirwa pafizikisi, uye kuona kwemavara kunogara kuine ratidziro yepfungwa uye yemuviri. mhedzisiro yemuvara, izvo zvinoita kuti vanhu vave nenhevedzano yekuenzanisa uye Kushamwaridzana.
• The American Committee on chromaticity inotsanangura ruvara se: ruvara hunhu hwechiedza kunze kwenzvimbo uye temporal heterogeneity, ndiko kuti, mwaranzi yechiedza inogona kukurudzira retina uye kukonzera chiitiko chinowanikwa nemucherechedzi kuburikidza nekuona.

二、 Nhanganyaya kuCIE color system

Misangano miviri yakakosha yeCIE

• Cambridge Musangano muna 1931
  • Zvikonzero zvemusangano:
    • RGB modhi inotora mavara matatu ekutanga emuviri ane chirevo chakajeka chemuviri, asi imhando yemhando yemhando yemudziyo (mudziyo wega wega une tsananguro dzakasiyana kana uchishandisa RGB modhi, iyo isiri yepasirese)
    • • Kubva pamuenzaniso weRGB, masayendisiti eCIE anoedza kushandisa nzira dzemasvomhu kuti aone mavara matatu ekutanga kubva kune chaiwo mavara ekutanga, uye kugadzira hurongwa hutsva hwemavara, kuitira kuti pigment, dhayi uye kudhinda indasitiri inogona kunyatsogadzira ruvara rwezvigadzirwa.
    • Kubudirira kwemusangano:
      • Mucherechedzo wakajairika (mhinduro yemaziso emunhuwo zvake kuruvara) inotsanangurwa. Muyero unotora iwo ekufungidzira matatu ekutanga mavara e X, y uye Z
      • Inotsanangura Standard Illuminants (yakajeka sosi yakatarwa inoshandiswa kuenzanisa mavara)
      • CIE XYZ yekutanga color system (yekufungidzira yekutanga color system ine chekuita neRGB) inotsanangurwa
      • CIE xyY nzvimbo yeruvara inotsanangurwa (nzvimbo yeruvara inotorwa kubva kuXYZ, iyo inoparadzanisa x uye y ine chekuita nemavara emavara kubva mukupenya Y ine chekuita nekureruka)
      • Iyo CIE chromaticity diagram inotsanangurwa, izvo zviri nyore kuona hukama pakati pemavara
• Musangano muna 1931
  • Zvikonzero zvemusangano:
    • • Kureruka uye chromaticity inoshandiswa muCIE 1931 haigoni kutsanangura hukama huri pakati pekusimudzira muviri uye maonero emavara.
    • Chinhambwe chiri pakati peXYZ system nemavara maviri anomiririrwa pa chromaticity dhiyagiramu haienderane neshanduko inoonekwa yemucherechedzi weruvara. Dambudziko iri rinonzi dambudziko rekunzwisisana, kureva kuti, musiyano pakati pekukosha kwepakati mumusiyano wemuvara hauenderani nemaonero ekuona.
    • Kugadzirisa dambudziko rekunzwisisa kwenzvimbo yemavara.
    • Kubudirira kwemusangano:
      • • Nzvimbo mbiri dzemavara dzakatsanangurwa: CIELUV (yekuzvivhenekera) uye CIELAB (yekusazvivhenekera).