Some experiments have proved that the combination of Block Truncation Codingtechnique and Subband Coding can get the reconstructed picture of a little raggedness ofsharp ed.

• 实践表明,将块截断编码与子带编码相结合(即子带块截断编码算法),能去除前者所带来的严重的块效应,使重建图像质量明显提高。