空间域随机置乱和锐化滤波是基本的图像处理方法。

A random scrambling method was proposed for digital image encryption.

youdao

具有基本功能：直方图均衡化、中值滤波、均值滤波、锐化、低通高通同态滤波。

Basic function: histogram equalization, median filtering, average filtering, sharpening, low-pass qualcomm homomorphic filtering.

youdao

具有基本功能：直方图均衡化、中值滤波、均值滤波、锐化、低通高通同态滤波。

Basic function: histogram equalization, median filtering, average filtering, sharpening, low-pass qualcomm homomorphic filtering.

youdao