分形图像压缩编码,给每个range块寻找合适的domain块，减少搜索domain块的范围，编码速度将有很大提高。所以编码时用快限制分形编码,把图像分成4小块，每块中的range块只在这块中寻找domain块。-Fractal image compression coding, for each range block to find a suitable domain block, domain block search to reduce the scope of encoding speed will be greatly improved. Therefore, when encoding speed limit using fractal coding, the image is divided into four pieces, each block in the range only to find domain block in the piece.