数字图像的平滑

一幅原始图像，在获取和传输过程中，会受到各种噪声的干扰，使图像退化，质量下降．退化会引起图像模糊，特征淹没，对分析图像不利．为了抑制噪声改善图像质量进行的处理称为图像平滑或去噪．数字图像平滑处理可以在空间域或频率域中进行．分析图像平滑处理方法，对相关方法的适用场合进行探讨，并且给出实现程序．

The Smoothing of Digital Image

Any picture would be effected by all kinds of noise during the course of acquisition and transition which would lead to the degradation of a picture. The image and the character of a picture indistinct which is an disadvantage for image analyse. The way for lower down the noise to improve the quality of the picture calls the smoothing of image or noise restraint. It can be accomplished in spatial domain and frequency domain. This chapter presents the ways of the smoothing of digital image. Try to find out which way is suitable in different situation. After that we present the forming process.