关键词: 脉冲噪声, 均值滤波, 中值滤波, 自适应窗口

Abstract: Mean filters can smooth the image noise while adaptive median filters can preserve the details and edge information of the original image.In order to restore the image with high-density impulse noise，this paper combines the merits of mean filters and adaptive median filters，and proposes a new algorithm for the improved adaptive median filters.The experimental results show that the algorithm can eliminate high-density impulse noise in the image and preserve the details and edge information of the original image effectively.

Key words: impulse noise, mean filtering, median filtering, adaptive windows