Fast Fractal Image Coding Algorithm Based on Sub-Block Feature
基于子块特征的快速分形图像压缩算法

To reduce the long encoding time of fractal compression algorithm,this paper proposes an improved algorithm.It uses the similar characteristics of sub-block,and converts the basic fractal image coding's entire search into the nearest neighbor search of a relative difference defined in this paper,and to the only search of the domain blocks which have the same difference.This method can reduce the search space. Experimental results demonstrate that,compared with the basic fractal image coding,the proposed alg...