将 std::vector<Mat> 导入 3D cv::Mat 的特定索引

Question

我有一个 vectorimageSlices 和一个 3D ：

cv::Mat RTstruct3D(3,DImensions3D, CV_8U, Scalar(0))

我想将我的向量放入 3D cv::Mat 的特定索引中。

        //Make a 3D Organ
        int programCounter = 0;
        vector<Mat>imageSlices;
        for (size_t k = 0; k < Npoint_Z.size(); k++)
        {
            Mat finalSliceImage = Mat :: zeros(DImensions3D[0], DImensions3D[1],CV_8U);
            vector<vector<int>> polies;
            for (size_t h = 0; h < Npoint_Z[k][0]; h++)
            {
                vector<int>x_y;
                x_y.push_back(ContourData[programCounter][0]); //x
                x_y.push_back(ContourData[programCounter][1]); //y
                polies.push_back(x_y);
                programCounter++;
            }
            fillPoly(finalSliceImage, polies, Scalar(0, 255, 0));
            imageSlices.push_back(finalSliceImage);
        }
        //Add Organ to RTSTRUCT 3D
        Mat RTstruct3D(3,DImensions3D, CV_8U, Scalar(0));

像这样的图像：

请帮我！谢谢。

Answer 1

您可以尝试使用 Mat cv::Mat::operator() ( const std::vector< Range > & ranges ) const 访问子矩阵，然后使用 Mat& cv::Mat::operator= ( const Mat & m )

例子：

int main() {
    cv::Mat m1(10, 10, CV_8U, cv::Scalar(1));
    vector<cv::Mat> v = {m1, m1, m1};
    std::array<int, 3> dims = {10, 10, 10};
    cv::Mat m2(3, dims.data(), CV_8U);
    vector<cv::Range> rV = {cv::Range(0, 1), cv::Range(0, 10), cv::Range(0, 10)};
    m2(rV.data()) = v[0];
    return 0;
}

Answer 2

        //Add Organ to RTSTRUCT 3D
        vector<Mat>RTstruct3D(DImensions3D[0], Mat(DImensions3D[1], DImensions3D[2], CV_8U));
        for (size_t i = 0; i < Npoint_Z.size(); i++)
        {
            RTstruct3D[Npoint_Z[i][1]] = imageSlices[i];
        }