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    National Tsing Hua University Institutional Repository > 電機資訊學院 > 資訊工程學系 > 會議論文  >  24-bit color image quantization for 8-bits color display based on Y-Cr-Cb


    Please use this identifier to cite or link to this item: http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/66011


    Title: 24-bit color image quantization for 8-bits color display based on Y-Cr-Cb
    Authors: Long-Wen Chang;Tsann-Shyong Liu
    教師: 張隆紋
    Date: 1993
    Publisher: International Society for Optical Engineering
    Relation: Proc. SPIE,Vol. 2028,94,1993
    Keywords: R-G-B
    Y-Cr-Cb
    24-bits
    Abstract: A new fast algorithm that can display true 24-bits color images of JPEG and MPEG on a 8 bits color display is described. Instead of generating a colormap in the R-G-B color space conventionally, we perform analysis of color images based on the Y-Cr-Cb color space. By using Bayes decision rule, the representative values for Y component are selected based on its histogram. Then, the representative values for Cr and Cb components are determined by their conditional histogram assuming Y. Finally, a fast lookup table that can generate R-G-B outputs for Y-Cr-Cb inputs without matrix transformation is addressed. The experimental results show that good-looking quality color quantization images can be achieved by our proposed algorithm.
    URI: http://spie.org/
    http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/66011
    Appears in Collections:[資訊工程學系] 會議論文

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