LEE Filter for SAR Speckle reduction

im：SAR影像

w_size：窗口大小，奇数 3 5 7 9等

out_size：输出图像的大小，可以是 same 或者 full

NL：number of Looks，等效视数

bound：边缘扩展模式，分为 symmetric ， replicate , circular 。

flag：计算时是否包含中心像素，0为不包含，1为包含。



bound和flag主要是给im_mean_var用的 :)



im_ret：滤波结果

-LEE Filter for SAR Speckle reduction　im: SAR imaging　w_size: window size, and other odd 3579　out_size: output image size, can be ' same'　or ' full'　 NL: number of Looks, ENL Number of　bound: Edge Extended mode is divided into ' symmetric' , ' replicate' , ' circular' .　 Flag: whether to include the calculation of the center pixel, 0 is not included, one to contain.　　Bound and the flag is mainly used to im_mean_var :)　 im_ret: filtering results