Compression of palettized images with progressive coding of the color information

Uwe Rauschenbach

doi:10.1117/12.386595

30 May 2000 Compression of palettized images with progressive coding of the color information

Uwe Rauschenbach

Proceedings Volume 4067, Visual Communications and Image Processing 2000; (2000) https://doi.org/10.1117/12.386595
Event: Visual Communications and Image Processing 2000, 2000, Perth, Australia

Abstract

This paper introduces a new compression method for palettized images, which supports progressive refinement of the color information in contrast to the resolution refinement used in standard methods like interlaced GIF. Such, fine image details can be recognized after decoding only a small part of the compressed image data. Achieved compression ratios are comparable to those of interlaced GIF or PNG. The method combines color map sorting with bitplane by bitplane prediction and Golomb coding of the pixel field.

Citation Download Citation

Uwe Rauschenbach "Compression of palettized images with progressive coding of the color information", Proc. SPIE 4067, Visual Communications and Image Processing 2000, (30 May 2000); https://doi.org/10.1117/12.386595

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