帮我生成一段可以填充轮廓内部的代码，基于opencv c++

Sure, I can generate some code for you to fill contours in OpenCV C. Here's a sample code:

void fillContours(Mat& img, vector<vector<Point>> contours)
{
    vector<Vec4i> hierarchy;
    for (int i = 0; i < contours.size(); i++)
    {
        drawContours(img, contours, i, Scalar(255), CV_FILLED, 8, hierarchy);
    }
}

This function will take an OpenCV Mat object and a vector of contours as input and fill the contours with white color. You can use this code as a reference and modify it according to your specific requirements. Let me know if you have any other question!