Lin, Huawu Venetsanopoulos, Anastasios N.Īccording to the collage theorem, the encoding distortion for fractal image compression is directly related to the metric used in the encoding process. Perceptually lossless fractal image compression
The compression results of several welding radiographic images using the proposed scheme are evaluated quantitatively and compared with the results of Huffman coding algorithm. Moreover, the use of wavelet transform speeds up the fractal compression algorithm by reducing the size of the domain pool. Simulation results show that with the proposed scheme, we achieve an infinite peak signal to noise ratio (PSNR) with higher compression ratio compared to typical lossless method. The decompressed image is removed from the original one to obtain a residual image which is coded by using Huffman algorithm. The process starts by compressing and decompressing the original image using wavelet transformation and fractal coding algorithm. In this work a lossless wavelet- fractal image coder is proposed.
Mekhalfa, Faiza Avanaki, Mohammad R N Berkani, Daoud In every case, the JPEG algorithm was superior to the fractal method at a given compression ratio according to a root mean square criterion and a peak signal to noise criterion.Ī Lossless hybrid wavelet- fractal compression for welding radiographic images.
A comparison of the fractal and JPEG algorithmsĪ proprietary fractal image compression algorithm and the Joint Photographic Experts Group (JPEG) industry standard algorithm for image compression are compared.
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