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March 2014 update

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Ingy döt Net 2014-04-02 16:56:35 +00:00
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Task/Color-quantization/00DESCRIPTION
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{{task}}
[[file:quantum_frog.png|full color|thumb|left|192px]][[file:quantum_frog_16.png|Example: Gimp 16 color|thumb|left|192px]]
[[wp:Color_quantization|Color quantization]] is the process of reducing number of colors used in an image while trying to maintain the visual appearance of the original image. In general, it is a form of [[wp:Cluster_analysis|cluster analysis]], if each RGB color value is considered as a coordinate triple in the 3D colorspace. There are some well know algorithms [http://web.cs.wpi.edu/~matt/courses/cs563/talks/color_quant/CQindex.html], each with its own advantages and drawbacks.