2006, Volume 8, Issue 1
Strategic Study of CAE >> 2006, Volume 8, Issue 1
A New Algorithm of Fractal Image Coding
1. College of Information Science and Engineering , Shandong University , Jinan 250100 , China
2. School of Communication and Information Engineering , University of Electronic Science and Technology , Chengdu 610054 , China
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Abstract
Because it takes too much of time in fractal image coding, the paper analyses the factors that affect the speed of fractal image coding , and proposes a novel idea by using the reformed variance (tentatively) to improve image fractal compression performance . A theorem is proved that the IFS cannot change the image blocks' reformed variance. Moreover , it gives a novel fractal image compression method based on the reformed variance. The simulation results illuminate that the new method can run fast, at the same time it can improve the PSNR when compared with other fast algorithms.
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References
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