Method of color quantization in color images
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United States of America Patent
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Jan 13, 2004
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N/A
app pub date -
Jan 26, 2000
filing date -
Jan 26, 2000
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Abstract
A method for assigning a color symbol to an image pixel comprises selecting a luminance value from a discrete set of quantized luminance values; selecting a chrominance value from an ordered discrete set of quantized chrominance values; and composing a color symbol from an index of the selected luminance value and an index of an ordinal position of the selected chrominance value. In particular embodiments of the invention, each discrete chrominance value is selected from a Fibonacci lattice on a constant-luminance plane in a perceptually uniform color space such as Lab or Luv.
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