该算法由变换组合优化、彩色分量加权、CSF滤波三部分组成。实验结果表明，在非常大的压缩比率范围下，该算法的客观质量和主观质量都优于JPEG2000有损变换算法和JPEG2000无损压缩算法。-Optimization of the algorithm by the transformation, color component weighted, CSF filtering of three parts. The results show that in the very large compr