Softwares for Digital Image Processing: (7) An Algorithm for Color Reduction

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Other Title
  • 画像処理のためのソフトウェア: (7) 色数削減のアルゴリズム

Abstract

An algorithm to reduce the number of colors in a color image is explained. To bring the appearance frequency of the colors close the same, the number of colors in an image is reduced by dividing three-dimensional space (RGB-space) in which the colors are distributed. The amount of information included in the reduced image is left by this algorithm as much as possible. A software library to reduce the number of colors both in the RGB and palette color images is introduced for the realization of this algorithm. For the application of this library, the UNIX command“tiffreduce”is introduced. This command is available for the color reduction of a TIFF image file.

Journal

  • Geoinformatics

    Geoinformatics 5 (4), 187-210, 1994

    Japan Society of Geoinformatics

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