1、首先创建个简单的图片，大家都说会画圆形和矩形就可以画任意形状，因为我们可以对图片进行进行组合和按位操作

import cv2

import numpy as np

square = np.zeros((300,300),np.uint8)

cv2.rectangle(square,(50,50),(250,250),128,-2)

cv2.imshow("peng",square)

cv2.waitKey(0)

#画图

ellipse = np.zeros((300,300),np.uint8) cv2.ellipse(ellipse,(150,150),(150,150),30,0,180,255,-2)

cv2.imshow("ellipse",ellipse)

cv2.waitKey(0)

cv2.destroyAllWindows()

注意图坐标是在左下（与IOS有差异）

画图圆形注意角度和起始角度

2、现在开始对图片进行按位操作，首先看And操作

And = cv2.bitwise_and(square,ellipse)

cv2.imshow("And",And)

cv2.waitKey(0)

cv2.destroyAllWindows()

and

3、or

bitwiseOR = cv2.bitwise_or(square,ellipse)

cv2.imshow("OR",bitwiseOR)

cv2.waitKey(0)

cv2.destroyAllWindows()

OR

4、NOT，取反

bitwiseNOT = cv2.bitwise_not(square)

cv2.imshow("not",bitwiseNOT)

cv2.waitKey(0)

cv2.destroyAllWindows()

取反

5、XOR两个图形的非交互处

bitwiseXOR = cv2.bitwise_xor(square,ellipse)

cv2.imshow("XOR",bitwiseXOR)

cv2.waitKey(0)

cv2.destroyAllWindows()

显示非交互处