eigen.cpp

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#include "mexopencv.hpp"
using namespace std;
using namespace cv;

void mexFunction(int nlhs, mxArray *plhs[], int nrhs, const mxArray *prhs[])
{
    // Check the number of arguments
    nargchk(nrhs==1 && nlhs<=3);

    // Argument vector
    vector<MxArray> rhs(prhs, prhs+nrhs);

    // Process
    Mat src(rhs[0].toMat(rhs[0].isSingle() ? CV_32F : CV_64F));
    Mat eigenvalues, eigenvectors;
    bool b = eigen(src, eigenvalues, (nlhs>1 ? eigenvectors : noArray()));
    plhs[0] = MxArray(eigenvalues);
    if (nlhs > 1)
        plhs[1] = MxArray(eigenvectors);
    if (nlhs > 2)
        plhs[2] = MxArray(b);
}