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// C++ / JNI
// vector_KeyPoint converters

void Mat_to_vector_KeyPoint(Mat& mat, vector<KeyPoint>& v_kp)
{
    v_kp.clear();
    CHECK_MAT(mat.type()==CV_32FC(7) && mat.cols==1);
    for(int i=0; i<mat.rows; i++)
    {
        Vec<float, 7> v = mat.at< Vec<float, 7> >(i, 0);
        KeyPoint kp(v[0], v[1], v[2], v[3], v[4], (int)v[5], (int)v[6]);
        v_kp.push_back(kp);
    }
    return;
}


void vector_KeyPoint_to_Mat(vector<KeyPoint>& v_kp, Mat& mat)
{
    int count = (int)v_kp.size();
    mat.create(count, 1, CV_32FC(7));
    for(int i=0; i<count; i++)
    {
        KeyPoint kp = v_kp[i];
        mat.at< Vec<float, 7> >(i, 0) = Vec<float, 7>(kp.pt.x, kp.pt.y, kp.size, kp.angle, kp.response, (float)kp.octave, (float)kp.class_id);
    }
}