K. U. Barthel, T. Voyé, P. Noll. Improved fractal image coding. In Proceedings of the International Picture Coding Symposium PCS'93, Lausanne, March 1993.
In this paper we propose an optimized fractal image coder. With a better codebook design, vector quantization of the luminance transformation para-meters, an adaptive search scheme, and entropy cod-ing of the geometrical transformation parameters we obtain an improved coding performance as com-pared to existing fractal image coders. We show how the optimal luminance transformation can be deter-mined. Our experimental results show that the Lena image can be coded at the rate of 0.13 bpp to 0.4 bpp to yield PSNR-values of 30 dB to 35 dB.
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@InProceedings{BaVoNo93,
Author = {Barthel, K. U. and Voyé, T. and Noll, P.},
Title = {Improved fractal image coding},
BookTitle = {Proceedings of the International Picture Coding Symposium PCS'93},
Address = {Lausanne},
Month = {March},
Year = {1993}
}