opencv wyciek pamięci

cv::Mat takePhoto() {
	cv::VideoCapture camera(0);
	cv::Mat capturedImage;
	const std::string cameraWindowTitle = "Press 'SPACE' to take a photo";
	const std::string agreementWinTitle = "Do you like this image? yes('y')/no('another')";
	
	int agreeKey = 0;
	do {
		cv::namedWindow(cameraWindowTitle,
			cv::WindowFlags::WINDOW_AUTOSIZE | cv::WindowFlags::WINDOW_KEEPRATIO);

		int takingPicKey = 0;
		while (takingPicKey != ' ') {
			camera >> capturedImage;
			cv::imshow(cameraWindowTitle, capturedImage);
			takingPicKey = cv::waitKey(1);
		}
		cv::destroyWindow(cameraWindowTitle);

		cv::imshow(agreementWinTitle, capturedImage);
		agreeKey = cv::waitKey(0);
		cv::destroyWindow(agreementWinTitle);

	} while (agreeKey != 'y');

	camera.release();
	return capturedImage;
}