Computer simulation experiments show that the method can gain higher CR (compression-rate) and PSNR (peak-signal-noise-rate), keep details where pixel gray value varies hugely, remove block-effect conveniently, and have higher practical value.

• 计算机仿真实验表明，该方法可以获得较高的压缩比和峰值信噪比，可以很好地保持原始图像中灰度变化较大的细节，可以方便地去除方块效应，具有较高的实用价值。