既然你想要一個填充的矩形,你應該使用fillConvexPoly：

// Include center point of your rectangle, size of your rectangle and the degrees of rotation

void DrawRotatedRectangle(cv::Mat& image, cv::Point centerPoint, cv::Size rectangleSize, double rotationDegrees)

{

cv::Scalar color = cv::Scalar(255.0, 255.0, 255.0); // white

// Create the rotated rectangle

cv::RotatedRect rotatedRectangle(centerPoint, rectangleSize, rotationDegrees);

// We take the edges that OpenCV calculated for us

cv::Point2f vertices2f[4];

rotatedRectangle.points(vertices2f);

// Convert them so we can use them in a fillConvexPoly

cv::Point vertices[4];

for(int i = 0; i < 4; ++i){

vertices[i] = vertices2f[i];

}

// Now we can fill the rotated rectangle with our specified color

cv::fillConvexPoly(image,

vertices,

4,

color);

}

總結

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