Research of Image Compression Based on Fractal Coding

Dong Mei Wang; Jing Yi Lu

doi:10.4028/www.scientific.net/AMM.241-244.418

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 241-244Research of Image Compression Based on Fractal...

Research of Image Compression Based on Fractal Coding

Abstract:

The EZW and Fractal Coding were researched and simulated in this paper. And two drawbacks were discovered in these algorithm:the coding time is too long and the effect of reconstructed image is not ideal. Therefore, The paper studied the wavelet transformation in the fractal coding application, The wavelet coefficients of an image present two characteristics when the image is processed by wavelet transform: first characteristic is that the energy of an image is strongly concentrated in low frequency sub-image, second characteristic is that there is a similarity between the same direction in high frequency sub-images.but the fractal coding essence was precisely uses the similarity of wavelet transform image. The paper designed one kind of new Image Compression based on Fractal Coding in wavelet domain. The theoretical analysis and the simulation experiment indicated that, to some extent the method can reduce the coding time and reduce the MSE and enhance compression ratio of the reconstructed image and improve PSNR of the reconstructed image..

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Periodical:

Applied Mechanics and Materials (Volumes 241-244)

Pages:

418-422

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.241-244.418

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Online since:

December 2012

Authors:

Dong Mei Wang*, Jing Yi Lu

Keywords:

Arithmetic Coding, EZW, Fractal Coding, Wavelet Transform (WT)

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References

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