计算机技术与发展Issue(1)：128-132,5.DOI:10.3969/j.issn.1673-629X.2015.01.029
基于遗传分形编码的嵌入式小波图像编码算法
Embedded Wavelet Image Coding Algorithm Based on a Genetic Fractal Coding
摘要
Abstract
On the basis of analyzing the characteristics of wavelet and fractal coding,propose a new embedded wavelet image coding algo-rithm based on genetic fractal coding. According to the characteristics of image wavelet transform which is decomposed into different spa-tial frequency sub-images,the low frequency sub-band is carried out fractal coding based on genetic algorithm,using fast global search a-bility of genetic algorithms to improve the matching search speed of range block and domain block in fractal coding. The high frequency sub-band is conducted SPIHT coding after threshold de-noising processing. Performed simultaneously in two parts,improve the compres-sion efficiency of the image. Experimental results show that compared with the traditional fractal coding and SPIHT coding compression methods,the algorithm gets a better reconstruction quality of image,especially at the low bit rate the PSNR is improved and the running time of the algorithm is also reduced.关键词
分形编码/小波变换/遗传算法/图像压缩/SPIHT编码Key words
fractal coding/wavelet transform/genetic algorithm/image compression/SPIHT coding分类
信息技术与安全科学引用本文复制引用
张方舟,王徐研,郝庆辉..基于遗传分形编码的嵌入式小波图像编码算法[J].计算机技术与发展,2015,(1):128-132,5.基金项目
黑龙江省教育科研项目(11551016) （11551016）
