关键词: 脉冲噪声, 中值滤波, 迭代, 自适应性

Abstract: The random value impulse noise modeling is defined，it is more realistic noise conditions，an adaptive controlling iteration times filter algorithm is proposed for the random value impulse noise remove.Algorithm consists of four steps，noise detection，noise filtering，error detection pixel correction and iterative control.The algorithm can remove fixed-value noise and random-value impulse noise effectively，and can effectively filter out fixed value impulse noise and random value impulse noise.Compared with median value filtering algorithm，this algorithm can protect filtered image information better，and there is no need to set the iteration parameters in the filtering process，with strong adaptability.

Key words: impulse noise, median filter, iteration, adaptability