def start_moments_calculator(self, target_algorithm, display=False):
        while True:
            processed_image = self.get_processed_image(target_algorithm)
            if processed_image is None:
                break
            moments = cv2.moments(processed_image)
            hu_moments = cv2.HuMoments(moments)
            for i in range(0, 7):
                hu_moments[i] = -1 * copysign(1.0, hu_moments[i]) * log10(abs(hu_moments[i]))

            if display:
                cv2.imshow("Show by CV2", processed_image)
                k = cv2.waitKey(1)
                if k % 256 == 27:  # ESC
                    print("Escape hit, closing...")
                    break

        self.cam.release()
        cv2.destroyAllWindows()