SENSATION AND PERCEPTION
VISION SENSORY AND PERCEPTUAL PROCESSING
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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light waves reflected by an object remain constant despite changes in lighting.
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objects are perceived to be the same color even if the light they reflect changes.
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the perceived color of an object has a constant relation to its brightness.
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the frequency of light waves is directly proportional to the light’s wavelength.
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colors remain the same hue even when the tint changes under our difference threshold.
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Detailed explanation-1: -Color constancy refers to our ability to perceive colors as relatively constant over varying illuminations (i.e. light sources). For example, a red apple will still look red on a sunny day or cloudy day – or in a grocery store or a home.
Detailed explanation-2: -Similarly, when we take a collection of objects of different spectral reflectance from one illuminant to another, the color of the objects tend to persist. This is referred to as “color constancy”. These terms are somewhat misleading because neither lightness nor color are ever completely constant.
Detailed explanation-3: -Background. Lightness constancy refers to our ability to perceive the relative reflectance of objects despite changes in illumination. The easiest way to think of lightness constancy is to think of it along the continuum from black to gray to white.
Detailed explanation-4: -Color consistency describes the non-variation in color from light source to light source, and fixture to fixture.
Detailed explanation-5: -Light constancy concerns the relative reflectance of an object independent of illumination. Color constancy deals with the perception of color independent of illumination.