I have a task to calculate the angle between object and camera planes. As an input I have src and dst points(I choose src on the photo, dst are constants), so with cv2 I compute a homography matrix.
homography_matrix, _ = cv2.findHomography(dst_points, src_points)
How can I then receive an angle from this transformation matrix?
I tried different formulas and instruments in cv2. But nothing works.