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.gov website belongs to an official
government organization in the United States.
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Quantized representations of an image by relevant colors and JPEG compression.
The original image from Fig. 1 is shown in the first column. Subsequent columns show the image quantized by relevant colors estimated by the minCEntropy method, the colorimetric method, a human observer, and JPEG with the fewest colors. The estimated mutual information in bits and number of relevant colors n are shown beneath the corresponding image.
