import cv2 import numpy as np #outer template outer = cv2.imread("../../../../Desktop/running/shot1-scans/image-2-normal.png") #inner image inner = cv2.imread("../../../../Desktop/frame.jpg") rows, cols, ch = outer.shape ir, ic, ich = inner.shape print(f'{cols}x{rows}') print(f'{ic}x{ir}') # destination ponts on outer image pts1 = np.float32([[1445, 11429], [1445, 6832], [5009, 11429]]) # corresponding points on inner image pts2 = np.float32([[0, 0], [ic, 0], [0, ir]]) # transform inner to points on outer M = cv2.getAffineTransform(pts2, pts1) # apply dst = cv2.warpAffine(inner, M, (cols, rows), borderMode=cv2.BORDER_TRANSPARENT) final = outer.copy() final[0:rows, 0:cols] = dst cv2.imwrite("affine_poc2.png", final)