关键词: 图像处理, 噪声, 加性, 维纳滤波器

Abstract: In digital signal processing, we often meet with the problem of noise. If noise is additive, Wiener filtering is one simple method to delete it, and this filtering can minimize the mean standard error. In this article, the author considers the noise which is non-additive, by using the method of Wiener filtering we can also obtain the filtering which minimizes the mean standard error.

Key words: image processing, noise, additive, Wiener filtering