基于Matlab平台的中值滤波图像平滑设计与实现  

Design and Implementation of Median Filtering Image Smoothing Based on Matlab Platform

作　　者：王剑峰[1] 

机构地区：[1]重庆航天职业技术学院,重庆江北区400021

出　　处：《重庆航天职业技术学院学报》2015年第4期40-44,共5页Journal of Chongqing Aerospace Polytechnic

摘　　要：图像去噪是进行数字图像处理的一个基本环节，而中值滤波是基于排序统计理论的一种能有效抑制噪声的非线性信号处理技术，其基本原理是把数字图像或数字序列中一点的值用该点的一个邻域中各点值的中值代替，让周围的像素值接近真实值，从而消除孤立的噪声点。本文利用中值滤波对噪声图像进行平滑，通过大量实验表明对图像噪声起到了很好的抑制作用，对图像检索、图像分割中的图像特征提取有较大的现实意义。Image denoising is a basic step in digital image processing, and the median filtering is hased on the theory of order statistics of a nonlinear signal processing technology can effectively restrain noise and its basic principl of a point at whi e is to put the little value in a digital image or sequence used at various points in the field ch the value of the median instead, let the surrounding pixel values close to the real value of order to remove isolated noise points. This paper, using median filter to smooth noise image, through a large number of experiments show that has played a very good inhibitory effect of image noise. It has great practical significance for image retrieval, image segmentation of the image feature extraction.

关 键 词：中值滤波 像素 图像处理 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]