Furthermore, the proposed method can produce much smoother bit fluctuation with the average rate deviation reduces 0.175 and obtain much better average image quality with average PSNR improving 0.325dB (the best improvement is 0.62dB).

• 输出码流更加平稳:平均码率偏移减少0.；175; 图象的平均质量更好:平均PSNR提高0