gnoliyil / ipwithopencv Goto Github PK

What steps will reproduce the problem?
1. Code implemented, Image implemented, std::vector implemented
2. Command CThinPlateSpline tps(iP ,iiP);
 tps.warpImage(_Image, _TPSImage, 0.01, INTER_CUBIC, BACK_WARP);

What is the expected output? What do you see instead?
Expected Output is a Thin Plate Splines Transformation.
Errors:
cpp:566: error: undefined reference to 
`CThinPlateSpline::CThinPlateSpline(std::vector<cv::Point_<int>, 
std::allocator<cv::Point_<int> > > const&, std::vector<cv::Point_<int>, 
std::allocator<cv::Point_<int> > > const&)'

.cpp:566: error: undefined reference to `CThinPlateSpline::~CThinPlateSpline()'

:-1: error: collect2: error: ld returned 1 exit status

What version of the product are you using? On what operating system?
latest version

Have you ever experienced this issue?

Thanks,
Arthur

What steps will reproduce the problem?
1. Modify the example code to use following snipplet

        std::vector<realPoint> iP, iiP;

    int height = 512;
    int width = 512;

    int nppdim = 20;

    double dd = (double)width / nppdim;
    for (int y = 0; y < nppdim; y++) {
        for (int x = 0; x < nppdim; x++) {
            iP.push_back(realPoint(x*dd, y*dd));
            iiP.push_back(realPoint(x*dd, y*dd));
        }
    }

    iP.push_back(realPoint(0, 0));
    iiP.push_back(realPoint(0, 0));
    iP.push_back(realPoint(0, height - 1));
    iiP.push_back(realPoint(0, height - 1));
    iP.push_back(realPoint(width - 1, 0));
    iiP.push_back(realPoint(width - 1, 0));
    iP.push_back(realPoint(width - 1, height - 1));
    iiP.push_back(realPoint(width - 1, height - 1));

2. See an unexpected distortion ( this comes from floating point calcs i think )

expected output:
     the same image as the original!

instead:
     the image get's distorted!


Bugfix: 
   in computeSplineCoeffs:
   ->   make all the matrixes double precission ( instead of float )
   in fktU:
     shouldn't it be  "(r2 * log(r))" instead of "(r2 * log(r2))" ?