def remove_orange_frames()

in generate_side_by_side_standalone.py [0:0]


def remove_orange_frames(video):
    """Removes orange frames."""

    try:
        from matplotlib import pyplot as plt
    except:
        print("Missing matplotlib, please install")
        raise

    allframes = []
    orange_pixind = 0
    orange_frameind = 0
    frame_count = 0
    check_for_orange = True
    while video.isOpened():
        ret, frame = video.read()
        if ret:
            # Convert to gray to simplify the process
            allframes.append(cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY))

            # Check if it's orange still
            if check_for_orange:
                frame = allframes[-1]
                histo, _, _ = plt.hist(np.asarray(frame).flatten(), bins=255)

                maxi = np.argmax(histo)
                if not orange_pixind:
                    if maxi > 130:
                        continue
                    orange_pixind = maxi
                elif maxi == orange_pixind:
                    orange_frameind = frame_count
                else:
                    check_for_orange = False

            frame_count += 1

        else:
            video.release()
            break

    return allframes[orange_frameind:], orange_frameind