计算机工程 ›› 2010, Vol. 36 ›› Issue (9): 217-218,.doi: 10.3969/j.issn.1000-3428.2010.09.076

• 图形图像处理 • 上一篇    下一篇

基于图像细节子块的分形编码压缩方法

唐悟甲,吴晓红,余艳梅,罗代升   

  1. (四川大学电子信息学院图像信息研究所,成都 610064)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2010-05-05 发布日期:2010-05-05

Fractal Encoding Compression Method Based on Detail Block of Image

TANG Wu-jia, WU Xiao-hong, YU Yan-mei, LUO Dai-sheng   

  1. (Image Information Institute, School of Electronics and Information, Sichuan University, Chengdu 610064)
  • Received:1900-01-01 Revised:1900-01-01 Online:2010-05-05 Published:2010-05-05

摘要: 针对现有方法在编码含丰富细节信息的图像时编码时间长,编码小尺度子块时压缩率不高的缺点提出改进方法。该方法是基于Jacquin编码的理论,采用对编码子块划分为细节和非细节部分子块的方法,从而减少编码子块的数量,缩短编码时间,提高在小尺度子块划分下图像的压缩率。结果证明,对于含丰富细节信息的图像,子块数量减少到1/3,编码时间缩短1/3。

关键词: 图像压缩, 分形编码, Jacquin编码, 细节子块编码

Abstract: This paper proposes an improved method based on Jacquin theory to against the tradition way. It reduces encoded block number through classifying blocks with detail block and non-detail block, shortens encoding time and enhances compression rate in small scale block. Experimental result displays the number of encoded block reduces to 1/3 and the encoding time reduces to 2/3.

Key words: image compression, fractal encoding, Jacquin encoding, detail block encoding

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