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  2. Chromostereopsis - Wikipedia

    en.wikipedia.org/wiki/Chromostereopsis

    Blue–red contrast demonstrating depth perception effects 3 Layers of depths "Rivers, Valleys & Mountains". Chromostereopsis is a visual illusion whereby the impression of depth is conveyed in two-dimensional color images, usually of red–blue or red–green colors, but can also be perceived with redgrey or blue–grey images.

  3. Achromatopsia - Wikipedia

    en.wikipedia.org/wiki/Achromatopsia

    Some colors can be estimated through the use of colored filters. By comparing the luminosity of a color with and without a filter (or between two different filters), the color can be estimated. This is the premise of monocular lenses and the SeeKey. In some US states, achromats can use a red filter while driving to determine the color of a ...

  4. Color constancy - Wikipedia

    en.wikipedia.org/wiki/Color_constancy

    Color constancy: The colors of a hot air balloon are recognized as being the same in sun and shade. Example of the Land effect. Color constancy makes the above image appear to have red, green and blue hues, especially if it is the only light source in a dark room, even though it is composed of only light and dark shades of red and white.

  5. What colors can cats see? Here's how your pet perceives the ...

    www.aol.com/colors-cats-see-heres-pet-110109011.html

    From velvety purples to fiery reds, many people can see a spectrum of vivid colors via the human eye. Others, however, may have limited hue perception due to certain conditions.

  6. Agnosia - Wikipedia

    en.wikipedia.org/wiki/Agnosia

    A difficulty in perceiving colors in which the world may appear drab or in shades of gray. Cerebral achromatopsia is caused by neurological damage. [10] [11] There are two regions of the brain which specialize for color recognition, areas V4 and V8.

  7. Impossible color - Wikipedia

    en.wikipedia.org/wiki/Impossible_color

    Shades of Grey – 2009 novel by Jasper Fforde, a novel where social class is determined by the specific colors that one can see; Spectral color – Color evoked by a single wavelength of light in the visible spectrum; Tetrachromacy – Type of color vision with four types of cone cells, having four primary colors

  8. What colors can cats see? A vet reveals the answer (and it ...

    www.aol.com/colors-cats-see-vet-reveals...

    Yes, cats can see color but they don't see as many shades as we humans do. "Cats can see some color but they don’t see the full spectrum, so they are less able to differentiate various shades ...

  9. Tetrachromacy - Wikipedia

    en.wikipedia.org/wiki/Tetrachromacy

    The four pigments in a bird's cone cells (in this example, estrildid finches) extend the range of color vision into the ultraviolet. [1]Tetrachromacy (from Greek tetra, meaning "four" and chroma, meaning "color") is the condition of possessing four independent channels for conveying color information, or possessing four types of cone cell in the eye.

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