一种多波段组合的孤立噪声去除方法

摘要

首次提出了一种多波段组合的孤立噪声去除方法.文章在对图像进行中值滤波处理之前,先进行门限法的孤立噪声初步定位,设定孤立噪声为候选点;然后结合多波段图像数据对候选孤立噪声进行最终定位,只有当像元判断为真实的孤立噪声时,进行中值滤波处理;最后以中国一颗传输型卫星图像为例,检验了算法的有效性.%A method of removing isolated noises based on multi-band combination was firstly presented. In this paper, the isolated noises were preliminarily positioned and set as candidate by threshold method before median filtering; then these candidate-isolated noises were checked combining multi-band image information. If the candidate-isolated noises were real isolated noises, they would be removed by median filter. In the end, we took the domestic transmission satellite as example, and checked the validity of this method.