A false-color image is an image that depicts a subject in
colors that differ from those a faithful full-color photograph would show.A true-color image of a subject is an image that appears to the human eye just like the original subject would: a green tree appears green in the image, a red apple red, a blue sky blue, etc. When applied to black-and-white images, true-color means that the perceived lightness of a subject is preserved in its depiction. Absolute true-color is impossible to achieve due to the differences between the chemistries of the display media and an eye.
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See also
True Colors (disambiguation). Truecolor is a method of representing and storing graphical image information (especially in computer processing) such that a very large number of colors, shades, and hues can be displayed at once, such as high quality photographic images or complex graphics. By this definition Truecolor is when an image is colored by at least 256 shades of red, green and blue for a total of 16,777,216 color variations.
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