def get_frames_singleimage(self):
        """
        Get current left and right frames from a single image,
        by splitting the image in half.
        """
        frame = self.captures[0].read()[1]
        height, width, colors = frame.shape
        left_frame = frame[:, :width/2, :]
        right_frame = frame[:, width/2:, :]
        return [left_frame, right_frame]
Get current left and right frames from a single image,
        by splitting the image in half.