python cv2.calibrateCamera throws error: objectPoints should contain vector of vectors of points of type Point3f

Question

I have the code

img = cv2.imread(\"poolPictures\\chessboard3.jpg\", cv2.IMREAD_COLOR)
chessboardImage = cv2.imread(\"poolPictures\\chessboardActual.jpg\", c         


        

Answer 1

OpenCV also requires floats to have single precision, as per this question.

This means every array needs to be converted to np.float32 before passing to calibrateCamera.