1 January 1995 Fractal-based method for color image compression
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J. of Electronic Imaging, 4(1), (1995). doi:10.1117/12.195011
A fractal-based method for color image compression is presented. The method transforms the direct color components into three approximate principal components and applies a fractal-based compression method developed for gray-scale images to each new component. The main principal component, which contains a large amount of energy, is coded with high accuracy, while the other two components can be coded at lower accuracy and a very high compression ratio. The principal-component-based method gives an overall higher quality in the reconstructed image at a similar compression rate compared with compression based on other linear transforms of the color space.
Dan C. Popescu, Hong Yan, "Fractal-based method for color image compression," Journal of Electronic Imaging 4(1), (1 January 1995). https://doi.org/10.1117/12.195011


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