vwriter.py 文件源码

def rotating_example():
    img = cv2.imread('./data/hi.jpg')
    vwriter = VideoWriterRGB('hi-video.avi')
    frames = 0
    for angle in range(0, 360, 5):
        rot = imutils.rotate(img, angle=angle)
        cv2.imshow("Angle = %d" % (angle), rot)
        vwriter.addFrame(rot)
        frames += 1
    for angle in range(360, 0, -5):
        rot = imutils.rotate(img, angle=angle)
        cv2.imshow("Angle = %d" % (angle), rot)
        vwriter.addFrame(rot)
        frames += 1
    vwriter.finalise()
    print("Created movie with %d frames" % frames)