Color constancy

（重定向自Retinex theory）

Automatically making assumptions about reflectance and the type and source of light

Constancy makes square A appear darker than square B, when in fact they are both exactly the same shade of grey. See Same color illusion.

Achieving luminance constancy by retinex filtering for image analysis

Color constancy is an example of subjective constancy and a feature of the human color perception system which ensures that the perceived color of objects remains relatively constant under varying illumination conditions. A green apple for instance looks green to us at midday, when the main illumination is white sunlight, and also at sunset, when the main illumination is red. This helps us identify objects.

单词	Retinex theory
释义	Retinex theory 英语百科 Color constancy （重定向自Retinex theory） Color constancy is an example of subjective constancy and a feature of the human color perception system which ensures that the perceived color of objects remains relatively constant under varying illumination conditions. A green apple for instance looks green to us at midday, when the main illumination is white sunlight, and also at sunset, when the main illumination is red. This helps us identify objects.
随便看	psacharopoulos Psachna psacothea hilaris botelensis psacothea hilaris hilaris PSAD psaDb gene Psa Eia Kit P.sagittifolium Levl. PSAGN psakadic colonies Psaki psala psalidodect psalidodontia Psalis Psalliota arvensis Psalliota bisporus psalliota silvicola psalliotin psalloid psallops formosanus psallops leeae psallops luteus psalm book psalmbook