中值滤波在气象传真图中降噪的分析

针对气象传真图中含有大量的椒盐噪声,提出一种去噪效果更好的算法——自适应中值滤波算法.通过对中值滤波算法应用在气象传真图降噪中的效果仿真验证,并将各种去除椒盐噪声算法进行比较.研究结果表明,中值滤波算法能够有效去除气象传真图的噪声.

Analysis of Median Filter for Noise Reduction of Meteorological Facsimile Map

Meteorological facsimile map contains a lot of salt-and-pepper noise. The adaptive median filter algorithm is proposed in this paper, which has better performance in reducing noise of meteorological facsimile map. The simulation of median filter algorithms was implemented to verify the noise reduction effect in meteorological facsimile map,and through the comparison of a large number of removing salt-and-pepper noise algorithms. The results show that the algorithms can remove noise of meteorological facsimile map efficiently.