开始的代码:QColor yellow("#f0d048"); Qt::BrushStyle style = Qt::SolidPattern; QBrush brush(yellow, style); painter.setBrush(brush); painter.drawEllipse(...
在图像帧上,我使用以下代码来绘制椭圆: void ellipse(Mat& img, Point center, Size axes, double angle, double startAngle, double endAngle, const Scalar& color,...