高斯模糊和锐化图片 opencv python

利用opencv来预处理图片
1.高斯模糊
2.图片锐化

class ProcessImg(object):
 def __init__(self, img, sigma):
 self.img img
 self.sigma sigma
 def gaussian_img(self):
 image gaussian blur 
 gaussian_img cv2.GaussianBlur(self.img, (3, 3), self.sigma)
 plt.imshow(gaussian_img.astype(np.int32)[:,:,::-1])
 plt.show()
 # cv2.imwrite(save_path guassian_img.png , gaussian_img)
 def sharpen_img(self):
 image sharpen 
 kernel np.array([[0,-1,0],[-1,5,-1],[0,-1,0]], np.float32)
 img_sharpen cv2.filter2D(self.img, -1, kernel kernel)
 plt.imshow(img_sharpen.astype(np.int32)[:, :, ::-1])
 plt.show()
 # cv2.imwrite(save_path sharp_img.png , img_sharpen)
img cv2.imread( test.png )
plt.imshow(img.astype(np.int32)[:, :, ::-1])
plt.show()
A ProcessImg(img, 0.5)
A.gaussian_img()
A.sharpen_img()