def red_and_black():
red = cv2.imread('./data/redHDSolidBlock.jpg')
black = cv2.imread('./data/blackHDSolidBlock.jpg')
vwriter = VideoWriter('red_black_0.5Hz.avi')
frames = 0
for t in range(30):
for f in range(20):
vwriter.addFrame(black)
frames+=1
for f in range(20):
vwriter.addFrame(red)
frames+=1
vwriter.finalise()
print("Created movie with %d frames" % frames)
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