The road to Mathematics-python Computational Combat (20)-Machine vision-Laplace operator convolution filter

two dimensional convolution calculation of Laplace operator and linear sharpening filter

#-*-Coding:utf-8-*-   #线性锐化滤波-Laplace operator for two dimensional convolution calculation #code:[email protected]import cv2import numpy as Npfrom scipy import sig Nalfn= "test6.jpg" Myimg=cv2.imread (FN) Img=cv2.cvtcolor (myimg,cv2. Color_bgr2gray) Srcimg=np.array (img,np.double) Myh=np.array ([[0,1,0],[1,-4,1],[0,1,0]]) myj=signal.convolve2d ( Srcimg,myh,mode= "Same") jgimg=img-myjcv2.imshow (' src ', img) cv2.imshow (' DST ', jgimg) Cv2.waitkey () Cv2.destroyallwindows ()

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The road to Mathematics-python Computational Combat (20)-Machine vision-Laplace operator convolution filter