Affine transformation

해보고 싶었던 것이다.

example로 통해서 연습을 해보고, 실제 custom을 해보도록하자.

Example)

Affine transformation - OpenCV 3.4 with python 3 Tutorial 14 - Pysource

import cv2
import numpy as np
img = cv2.imread("grid.jpg")
rows, cols, ch = img.shape
cv2.circle(img, (83, 90), 5, (0, 0, 255), -1)
cv2.circle(img, (447, 90), 5, (0, 0, 255), -1)
cv2.circle(img, (83, 472), 5, (0, 0, 255), -1)
pts1 = np.float32([[83, 90], [447, 90], [83, 472]])
pts2 = np.float32([[0, 0], [447, 90], [150, 472]])
matrix = cv2.getAffineTransform(pts1, pts2)
result = cv2.warpAffine(img, matrix, (cols, rows))
cv2.imshow("Image", img)
cv2.imshow("Affine transformation", result)
cv2.waitKey(0)
cv2.destroyAllWindows()
[/python]

Example2)

OpenCV 파이썬, 네 점 투영 변환 (getPerspective)