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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 color and brightness value for the pixel.<ref>{{Cite journal |last=Chang |first=Lanlan |date=Mar 2006 |title=Hybrid color filter array demosaicking for
effective artifact suppression |url=https://web.archive.org/web/20091229063407/http://www3.ntu.edu.sg/home5/CHAN0069/JEI013003.pdf |journal=Journal of Electronic Imaging |volume=15 |issue=1 |pages=013003-1 - 013003-17}}</ref> The image processor also assesses the whole picture to guess at the correct distribution of [[Contrast (vision)|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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