Effective palette indexing for image compression using self-organization of Kohonen feature map

Authors:
Soo-Chang Pei;Yu-Ting Chuang;Wei-Hong Chuang
Affiliations:
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei;-;-
Venue:
IEEE Transactions on Image Processing
Year:
2006

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Abstract

The process of limited-color image compression usually involves color quantization followed by palette re-indexing. Palette re-indexing could improve the compression of color-indexed images, but it is still complicated and consumes extra time. Making use of the topology-preserving property of self-organizing Kohonen feature map, we can generate a fairly good color index table to achieve both high image quality and high compression, without re-indexing. Promising experiment results will be presented