OpenNI and OpenCV: cv2.imshow() crashes with error: (-215:Assertion failed) dst.data == (uchar*)dst_ptr in function 'cvShowImage'

Question

I am trying to receive a depth image from an Orbbec Astra Pro camera connected to a Windows 10 machine. I have therfor installed opencv-python 4.0.0.21 and

Answer 1

Have you tried:

frame.get_buffer_as_uint32()
img = np.frombuffer(frame_data, dtype=np.uint32)

In opencv4 for some reason imshow will not work if you do not use specific dtype