Dadam Dadam - 1 year ago 136
Python Question

opencv warpPerspective parameter count

In my script I have the following code:

src = numpy.array(cornersSheet, numpy.float32)
dst = numpy.array(cornersDesired, numpy.float32)
transform = cv2.getPerspectiveTransform(src,dst)
finished = cv2.warpPerspective(img, transform, img.shape)

Python says:

Traceback (most recent call last):
File "./", line 138, in <module>
finished = cv2.warpPerspective(img, transform, img.shape)
TypeError: function takes exactly 2 arguments (3 given)

but according to documentation:

Python: cv2.warpPerspective(src, M, dsize[, dst[, flags[, borderMode[, borderValue]]]]) → dst

three parameters are OK. I have the same issue with


Problem solved. img.shape returns tuple with 3 elements, warpPerspective expects tuple with 2.