关于指纹预处理算法，平滑处理算法，锐化处理算法，二值化处理算法。-A fingerprint preprocessing algorithm, smoothing algorithm, sharpening algorithm, two value processing algorithm.

这是关于巴特沃斯（Butterworth）高通对图像进行锐化处理，二阶巴特沃斯(Butterworth)低通滤波器进行图像平滑的matlab gui-This is about Butterworth (Butterworth) high-pass image sharpening, second order Butterworth (Butterworth) low-pass filter for image smoothing matlab gui