#coding=utf-8

import cv2

import numpy as np

img = cv2.imread("2.png",cv2.IMREAD_COLOR)

cv2.line(img,(0,0),(150,150),(255,0,0),15)

#画线段，起点，终点，颜色（BGR），线段粗细

cv2.rectangle(img,(10,10),(50,50),(0,255,0))

#长方形，长方形左上角，右下角

cv2.circle(img,(100,100),50,(0,0,255),-1)

#圆，圆心，半径，-1代表完全填充

pts = np.array([[10,5],[20,30],[70,20],[50,10]],np.int64)

#记录四个点的位置

cv2.polylines(img,[pts],True,(0,255,255),5)

#四个点连起来的一个折现圈

font = cv2.FONT_HERSHEY_SIMPLEX

cv2.putText(img,'Fuck you',(210,190),font,1,(255,255,255),5,cv2.LINE_AA)

#字的位置，字的大小，字的粗细

cv2.imshow('image',img)

cv2.waitKey (0)

cv2.destroyAllWindows()

#coding=utf-8

import cv2

import numpy as np

img = cv2.imread("2.png",cv2.IMREAD_COLOR)

img[55,55] = [255,255,255]

img[180:240,180:240] = [255,255,255]

#直接对图像的某一位置进行修改,修改成白色

watch_face = img[50:200,100:300]

img[0:150,0:200] = watch_face

#直接将图像从原图中扣下来

cv2.imshow('image',img)

cv2.waitKey (0)

cv2.destroyAllWindows()