By means of residual impulse noise detection, the window size of median filter was chosen adaptively to remove the high density impulse noise while preserving the details of the image.

• 通过对剩余脉冲的检测，自适应地改变滤波器窗口尺寸，从而有效地滤除密度较大的脉冲干扰，同时较好地保留图像的细节。