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=== Demosaicing ===
As stated above, the image processor evaluates the color and brightness data of a given pixel, compares them with the data from neighboring pixels, and then uses a [[demosaicing]] algorithm to produce an appropriate colour and brightness value for the pixel. The image processor also assesses the whole picture to guess at the correct distribution of contrast. By adjusting the [[Gamma correction|gamma]] value (heightening or lowering the contrast range of an image's mid-tones), subtle tonal gradations, such as in human skin or the blue of the sky, become much more realistic.
=== Noise reduction ===
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