OpenCV的膨胀

import matplotlib.pyplot as plt
import cv2
img = cv2.imread('test9.jpg')
img = cv2.cvtColor(img,cv2.COLOR_BGR2RGB)
kernel = cv2.getStructuringElement(cv2.MORPH_RECT,(3,3))
dilation = cv2.dilate(img,kernel,iterations =1)
plt.subplot(121),plt.imshow(img),plt.title('original')
plt.xticks([]),plt.yticks([])
plt.subplot(122),plt.imshow(dilation),plt.title('dilation')
plt.xticks([]),plt.yticks([])
plt.show()

用到的测试图片 test9.jpg

 

test3.jpg如下：