Creating a video using OpenCV 2.4.0 in python

Question

I am trying to create a video using OpenCV 2.4.0 in python 2.7.2. But the avi file size is 0.

My code:

from cv         


        

Answer 1

Found this code, which works for me (generating colored noise):

writer = cv2.VideoWriter("output.avi", cv2.VideoWriter_fourcc(*"MJPG"), 30,(640,480))
for frame in range(1000):
    writer.write(np.random.randint(0, 255, (480,640,3)).astype('uint8'))
writer.release()

Source: https://github.com/ContinuumIO/anaconda-issues/issues/223#issuecomment-285523938