The conditional smoothing filter is a nonlinear filter, which can hot only highlights the low frequency information, but also preserves useful edges and compresses blurning effect of smoothing filter by setting a threshold to control the smoothing possess, It is a useful pre-processing method for image classfi cation and information extraction. This paper presented the .principle and algorithm of this method and its implementation in S101 image processing system.Two examples are given to illustrate its application to remote sensing image processing.
孙莉. 条件平滑滤波及其应用[J]. 国土资源遥感, 1989, 1(2): 44-46.
Sun Li . THE CONDITIONAL SMOOTHING FILTER AND ITS APPLICATION. REMOTE SENSING FOR LAND & RESOURCES, 1989, 1(2): 44-46.