[人工智能]opencv图像画圆

将人脸框的矩形改为

void drawEllipse(cv::Mat &display, const Rect &faceRect, const cv::Scalar &color, int debounce, float cw, float acw) {
	static auto origin = faceRect;
	if(std::abs(origin.left - faceRect.left)     > debounce || 
	   std::abs(origin.bottom - faceRect.bottom) > debounce) {
		origin = faceRect;
	}
	auto rect = rr(origin);
	cv::ellipse(display, rect.center, zoom(rect.size, 5),  0., 0.,   360., color, 1, 16);

	cv::ellipse(display, rect.center, zoom(rect.size, 4),  cw, 0.,   90.,  color, 2, 16);
	cv::ellipse(display, rect.center, zoom(rect.size, 3),  cw, 0.,   90.,  color, 2, 16);
	cv::ellipse(display, rect.center, zoom(rect.size, 2),  cw, 0.,   90.,  color, 2, 16);
	cv::ellipse(display, rect.center, zoom(rect.size, 4),  cw, 180., 270., color, 2, 16);
	cv::ellipse(display, rect.center, zoom(rect.size, 3),  cw, 180., 270., color, 2, 16);
	cv::ellipse(display, rect.center, zoom(rect.size, 2),  cw, 180., 270., color, 2, 16);

	cv::ellipse(display, rect.center, zoom(rect.size, 15), acw, 50.,   120.,  color, 1, 16);
	cv::ellipse(display, rect.center, zoom(rect.size, 15), acw, 170.,  240.,  color, 1, 16);
	cv::ellipse(display, rect.center, zoom(rect.size, 15), acw, 290.,  360.,  color, 1, 16);
}