摘要： 为了克服分形图像编码计算量大、编码时间长的缺点，提出了一种结合图像自身特点的优选码书搜索、自适应误差门限的分形图像编码算法，并结合四叉树编码算法展示了该算法搜索效率高、编码时间短、重建图像质量高的优点。实验证明，该算法能大大缩短编时间，为分形编码走向实用创造了条件。

关键词: 分形编码, 码书搜索, 四叉树编码

Abstract: In order to overcome the shortcomings of fractal image coding algorithm including huge computing quantity, long coding time, etc, this paper presents a kind of fractal image coding algorithm with optimum codeBook seeking(OCS). And through applied it in the quadtree-based fractal image coding algorithm it shows its high seeking efficiency, short coding time and high quality of reconstruct images. The experiments shows that this algorithm can greatly cut down the coding time and makes it possible for fractal image coding algorithm to be used.

中图分类号: 

• TN919.81