利用方差分形快速编码算法

提出一个基于图像块方差的新的快速分形编码算法，利用候选主块和序列块间当前最小异变象差和方差，通过排除不可取的主块，大大地减少了为搜索主块而寻找每个序列块最佳匹配的主块数，该算法在较短的时间内产生与常规的满搜索近乎一致的分形编码。

Fast Fractal Encoding Algorithms Using Variance

A fast fractal encoding algorithm based on the variance of image blocks is proposed to reduce coding time. The number of domain blocks searched to find the best match for each range block is significantly reduced by eliminating the ineligible domain blocks and looking for the current m inimum distortion and variance difference between the candidate dom ain block and range block.The algorithm produces in reduced time a com pletely identical fractal code to that of the conventional full search.