And also evaluates Rate distortion for all coded images by peak-signal-to-noise ratio(PSNR) and a compes applying JPEG2000 and JPEG to the same images by lossless and lossy compression experiment.

• 通过计算峰值信噪比(PSNR),对编码后的图像进行率失真评价,进行了无损压缩和适当的有损压缩实验,并对JPEG2000标准和JPEG标准的应用效果进行对比。