def getGrayImageFromeVideo(videoPath):
    video_cap = cv2.VideoCapture(videoPath)
    frame_count = 0
    all_frames = []

    while(True):
        ret, frame = video_cap.read()
        if ret is False:
            break

        frame_gray = np.array(cv2.cvtColor(frame, cv2.COLOR_RGB2GRAY))
        all_frames.append(frame_gray)
        frame_count += 1

    return all_frames, frame_count