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and he holds several patents on the technology. The most widely known practical fractal compression algorithm was invented by [Arnaud Jacquin]? in 1988, although Barnsley and [Alan Sloan]? took out the patent (US. 5,065,447) on this method also. |
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and he holds several patents on the technology. The most widely known practical fractal compression algorithm was invented by [Arnaud Jacquin]? in 1988, although Barnsley and [Alan Sloan]? took out the patent (US. 5,065,447) on this method also. |
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However, fractal compression never did see much use. The patent issue may have been a problem (JPEG can be used without any patent royalties), and fractal compression is much slower to compress than JPEG is. (It decompresses at a similar rate or even a bit faster.) Also, the improved compression ratio may have been an illusion. Fractal compression only has a large advantage over JPEG at low image quality levels, which is not what most people want. |
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However, fractal compression never did see much use. The patent issue may have been a problem (JPEG can be used without any patent royalties), and fractal compression is much slower to compress than JPEG is. (It decompresses at a similar rate or even a bit faster.) Also, the improved compression ratio may have been an illusion. Fractal compression only has a large advantage over JPEG at low image quality levels, which is not what most people want. The claim that fractal compressed images, when enlarged beyond their original size, looked better than similarly enlarged JPEG images seems also to have been an irrelevant distinction. |
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