page_title: Color constancy
hierarchical_section_title: Color constancy
caption_attribution_description: English: Preparations for a hot air balloon ride near Ottawa: Recognizing that the colors in the sunlight and in the shade are the same is an example of color constancy.
context_page_description: 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.
context_section_description: 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.
caption: Color constancy: The colors of a hot air balloon are recognized as being the same in sun and shade
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