import cv2
import numpy as np
img=cv2.imread('lena.jpg')
# print(img)
m_copy_img=np.array([[0,0.8,-100],[0.8,0,-12]],dtype=np.float32)
img_change=cv2.warpAffine(img,m_copy_img,(1000,500))
# cv2.imshow('test',img)
cv2.imshow('test',img_change)
cv2.waitKey(0)