圆盘与分形图像压缩编码算法

Disks and fractal image compression coding algorithm

分形图像压缩字典是实现分形图像压缩编码的关键因素,而由Barnsley设计的传统的分形图像压缩编码字典的不足之处是压缩字典还比较小.针对这一缺点,提出了一个较简单的非线性圆盘算法,简化了HongYan等提出的复杂非线性圆盘算法,用于解决压缩字典较小的问题.实验结果表明,这一算法简单可行,并具有良好的压缩结果和高质量的重建图像.

Fractal image compression dictionary is a key factor in the realiation of fractal image compression coding, and the main defect of traditional fractal image compression dictionary coding designed by Barnsley is that the compression dictionary is very small. This paper presents a simple and nonlinear disk algorithm, which simplifies the disk algorithm by Hong Yan designed in literature ,and can solve problem of small compression dictionary and makes a thorough change of using variable fractal compression dictionary. The experimental results show that the algorithm is very simple and has better compression results and high quality rebuilding image.