Opencv HOGDescriptor -> mexFunction, Matlab crash

Hello everybody,

I am trying to usu the Hog descriptor extractor of opencv in matlab. I have compiled the mexFunction without problem, but when I call Hog->compute my matlab crashes. I am using Ubuntu 12.04 64 bits. This is my C++ code:

void mexFunction(int nlhs, mxArray *plhs[], int nrhs,const mxArray *prhs[]){

    //Size
    Size dst_image_size=Size(32,32);
    //Read Matlab image and load it to and cvMat
    IplImage* inputImg = mxArr_to_new_IplImage(prhs[0]);
    //Creating the Mat image from the cvMat
    Mat image=Mat(inputImg,false);

    //Resizing 31*31
    resize(image, image, dst_image_size);

    //Conversion to black and white
    cvtColor(image, image,CV_RGB2GRAY);

    HOGDescriptor* d;

    vector<float> descriptorsValues;
    vector<Point> localizations;

    //OPENCV HOG PARAMETERS
    //Detection window size. Align to block size and block stride.
    Size winSize;
    //Block size in pixels. Align to cell size.
    Size blockSize=Size(16,16);
    // Block stride. It must be a multiple of cell size.
    Size blockStride;
    //Cell size
    Size cellSize=Size(8,8);
    //Number of bins
    int nbins=8;
    //Dimensions of the sobel filter for gradient computation,
    int derivAperture=1;
    //Gaussian smoothing window parameter(-1 no smoothing).
    double winSigma=-1;
    //L2-Hys normalization method shrinkage
    int histogramNormType=HOGDescriptor::L2Hys;
    double L2HysThreshold=0.2;
    //Flag to specify whether the gamma correction preprocessing is required or not.
    bool gammaCorrection=false;
    //Maximum number of detection windows(Maximum number of detection window increases)
    int nlevels=HOGDescriptor::DEFAULT_NLEVELS;

    Size win_stride=Size(32,32);
    Size win_padding=Size(0,0);

    d=new HOGDescriptor(winSize,blockSize,blockStride,cellSize,nbins,derivAperture,winSigma,histogramNormType,L2HysThreshold,gammaCorrection,nlevels);
    d->compute(image,descriptorsValues,win_stride,win_padding,localizations);

    plhs[0]=getMexArray(descriptorsValues);

    image.release();
    cvReleaseImage(&inputImg);
    delete d;

}

This is the matlab crash report:

MATLAB crash <file:/home/paco/matlab_crash_dump.9406-1>:

------------------------------------------------------------------------ Floating point exception detected at Wed Aug 22 14:24:12 2012 ------------------------------------------------------------------------

Configuration: Crash Decoding : Disabled Current Visual : 0x21 (class 4, depth 24) Default Encoding: UTF-8 GNU C Library : 2.15 stable MATLAB License : 544109 MATLAB Root : /usr/local/MATLAB/R2011a MATLAB Version : 7.12.0.635 (R2011a) Operating System: Linux 3.2.0-29-generic #46-Ubuntu SMP Fri Jul 27 17:03:23 UTC 2012 x86_64 Processor ID : x86 Family 15 Model 2 Stepping 3, AuthenticAMD Virtual Machine : Java 1.6.0_17-b04 with Sun Microsystems Inc. Java HotSpot™ 64-Bit Server VM mixed mode Window System : The X.Org Foundation (11103000), display :0.0

Fault Count: 1

Abnormal termination: Floating point exception

Register State (from fault): RAX = 00000000fffffff0 RBX = 00007fc90717f5e0 RCX = 0000000000000008 RDX = 00000000ffffffff RSP = 00007fc90717f300 RBP = 00007fc90717f4e0 RSI = 0000000000000000 RDI = 00007fc90717f010

   R8 = 0000000000000000   R9 = 0000000000000000
  R10 = 0000000000000008  R11 = 0000000000000080
  R12 = 00007fc90717f470  R13 = 0000000000000000
  R14 = 00007fc8a88dc420  R15 = 00007fc90717fc90

RIP = 00007fc89f96007b  EFL = 0000000000010297

   CS = 0033   FS = 0000   GS = 0000

Stack Trace (from fault): [ 0] 0x00007fc917c4af49 /usr/local/MATLAB/R2011a/bin/glnxa64/../../bin/glnxa64/libmwfl.so+00474953 fl::sysdep::linux::unwind_stack(void const**, unsigned long, unsigned long, fl::diag::thread_context const&)+000009

[ 1] 0x00007fc917c00dc1 /usr/local/MATLAB/R2011a/bin/glnxa64/../../bin/glnxa64/libmwfl.so+00171457 fl::diag::stacktrace_base::capture(fl::diag::thread_context const&, unsigned long)+000161

[ 2] 0x00007fc917c0a0dd /usr/local/MATLAB/R2011a/bin/glnxa64/../../bin/glnxa64/libmwfl.so+00209117

[ 3] 0x00007fc917c0a364 /usr/local/MATLAB/R2011a/bin/glnxa64/../../bin/glnxa64/libmwfl.so+00209764 fl::diag::terminate_log(char const*, fl::diag::thread_context const&, bool)+000100

[ 4] 0x00007fc916c76be5 /usr/local/MATLAB/R2011a/bin/glnxa64/../../bin/glnxa64/libmwmcr.so+00420837 fl::diag::terminate_log(char const*, ucontext const*, bool)+000085

[ 5] 0x00007fc916c73b54 /usr/local/MATLAB/R2011a/bin/glnxa64/../../bin/glnxa64/libmwmcr.so+00408404

[ 6] 0x00007fc916c7503d /usr/local/MATLAB/R2011a/bin/glnxa64/../../bin/glnxa64/libmwmcr.so+00413757

[ 7] 0x00007fc916c75197 /usr/local/MATLAB/R2011a/bin/glnxa64/../../bin/glnxa64/libmwmcr.so+00414103

[ 8] 0x00007fc916c75b1d /usr/local/MATLAB/R2011a/bin/glnxa64/../../bin/glnxa64/libmwmcr.so+00416541

[ 9] 0x00007fc916c76435 /usr/local/MATLAB/R2011a/bin/glnxa64/../../bin/glnxa64/libmwmcr.so+00418869

[ 10] 0x00007fc91575ecb0 /lib/x86_64-linux-gnu/libpthread.so.0+00064688

[ 11] 0x00007fc89f96007b /usr/local/lib/libopencv_objdetect.so.2.4+00335995 cv::HOGCache::init(cv::HOGDescriptor const*, cv::Mat const&, cv::Size_<int>, cv::Size_<int>, bool, cv::Size_<int>)+000251

[ 12] 0x00007fc89f960fd8 /usr/local/lib/libopencv_objdetect.so.2.4+00339928 cv::HOGCache::HOGCache(cv::HOGDescriptor const*, cv::Mat const&, cv::Size_<int>, cv::Size_<int>, bool, cv::Size_<int>)+000872

[ 13] 0x00007fc89f9630cb /usr/local /lib/libopencv_objdetect.so.2.4+00348363 cv::HOGDescriptor::compute(cv::Mat const&, std::vector<float, std::allocator<float> >&, cv::Size_<int>, cv::Size_<int>, std::vector<cv::Point_<int>, std::allocator<cv::Point_<int> > > const&) const+000523

[ 14] 0x00007fc8a06ff890 /home/paco/QtSDK/Opencv_to_Matlab/HOG_opencv/HOG_opencv.mexa64+00006288 mexFunction+000499

[ 15] 0x00007fc9107acfaa /usr/local/MATLAB/R2011a/bin/glnxa64/../../bin/glnxa64/../../bin/glnxa64/libmex.so+00049066 mexRunMexFile+000090

[ 16] 0x00007fc9107a9f19 /usr/local/MATLAB/R2011a/bin/glnxa64/../../bin/glnxa64/../../bin/glnxa64/libmex.so+00036633

[ 17] 0x00007fc9107aabbe /usr/local/MATLAB/R2011a/bin/glnxa64/../../bin/glnxa64/../../bin/glnxa64/libmex.so+00039870

[ 18] 0x00007fc9169eb7ef /usr/local/MATLAB/R2011a/bin/glnxa64/../../bin/glnxa64/libmwm_dispatcher.so+00391151 Mfh_file::dispatch_fh(int, mxArray_tag**, int, mxArray_tag**)+000511

[ 19] 0x00007fc9164b5a13 /usr/local/MATLAB/R2011a/bin/glnxa64/../../bin/glnxa64/libmwm_interpreter.so+03381779

[ 20] 0x00007fc9164b617b /usr/local/MATLAB/R2011a/bin/glnxa64/../../bin/glnxa64/libmwm_interpreter.so+03383675

[ 21] 0x00007fc9164b6cf4 /usr/local/MATLAB/R2011a/bin/glnxa64/../../bin/glnxa64/libmwm_interpreter.so+03386612

[ 22] 0x00007fc9163393bf /usr/local/MATLAB/R2011a/bin/glnxa64/../../bin/glnxa64/libmwm_interpreter.so+01823679

[ 23] 0x00007fc916364aee /usr/local/MATLAB/R2011a/bin/glnxa64/../../bin/glnxa64/libmwm_interpreter.so+02001646

[ 24] 0x00007fc916364be3 /usr/local/MATLAB/R2011a/bin/glnxa64/../../bin/glnxa64/libmwm_interpreter.so+02001891

[ 25] 0x00007fc9164621e9 /usr/local/MATLAB/R2011a/bin/glnxa64/../../bin/glnxa64/libmwm_interpreter.so+03039721

[ 26] 0x00007fc9162aec1b /usr/local/MATLAB/R2011a/bin/glnxa64/../../bin/glnxa64/libmwm_interpreter.so+01256475

[ 27] 0x00007fc9162b20ec /usr/local/MATLAB/R2011a/bin/glnxa64/../../bin/glnxa64/libmwm_interpreter.so+01269996

[ 28] 0x00007fc9162afc7a /usr/local/MATLAB/R2011a/bin/glnxa64/../../bin/glnxa64/libmwm_interpreter.so+01260666

[ 29] 0x00007fc9162b0741 /usr/local/MATLAB/R2011a/bin/glnxa64/../../bin/glnxa64/libmwm_interpreter.so+01263425

[ 30] 0x00007fc9163097d9 /usr/local/MATLAB/R2011a/bin/glnxa64/../../bin/glnxa64/libmwm_interpreter.so+01628121

[ 31] 0x00007fc9169eb7ef /usr/local/MATLAB/R2011a/bin/glnxa64/../../bin/glnxa64/libmwm_dispatcher.so+00391151 Mfh_file::dispatch_fh(int, mxArray_tag**, int, mxArray_tag**)+000511

[ 32] 0x00007fc9162f21f0 /usr/local/MATLAB/R2011a/bin/glnxa64/../../bin/glnxa64/libmwm_interpreter.so+01532400

[ 33] 0x00007fc916293975 /usr/local/MATLAB/R2011a/bin/glnxa64/../../bin/glnxa64/libmwm_interpreter.so+01145205

[ 34] 0x00007fc9162ad96e /usr/local/MATLAB/R2011a/bin/glnxa64/../../bin/glnxa64/libmwm_interpreter.so+01251694

[ 35] 0x00007fc9162b20ec /usr/local/MATLAB/R2011a/bin/glnxa64/../../bin/glnxa64/libmwm_interpreter.so+01269996

[ 36] 0x00007fc9162afc7a /usr/local/MATLAB/R2011a/bin/glnxa64/../../bin/glnxa64/libmwm_interpreter.so+01260666

[ 37] 0x00007fc9162b0741 /usr/local/MATLAB/R2011a/bin/glnxa64/../../bin/glnxa64/libmwm_interpreter.so+01263425

[ 38] 0x00007fc9163097d9 /usr/local/MATLAB/R2011a/bin/glnxa64/../../bin/glnxa64/libmwm_interpreter.so+01628121

[ 39] 0x00007fc9169eb7ef /usr/local/MATLAB/R2011a/bin/glnxa64/../../bin/glnxa64/libmwm_dispatcher.so+00391151 Mfh_file::dispatch_fh(int, mxArray_tag**, int, mxArray_tag**)+000511

[ 40] 0x00007fc9162e59b2 /usr/local/MATLAB/R2011a/bin/glnxa64/../../bin/glnxa64/libmwm_interpreter.so+01481138

[ 41] 0x00007fc9162a7e13 /usr/local/MATLAB/R2011a/bin/glnxa64/../../bin/glnxa64/libmwm_interpreter.so+01228307

[ 42] 0x00007fc9162a6eb7 /usr/local/MATLAB/R2011a/bin/glnxa64/../../bin/glnxa64/libmwm_interpreter.so+01224375

[ 43] 0x00007fc9162a7397 /usr/local/MATLAB/R2011a/bin/glnxa64/../../bin/glnxa64/libmwm_interpreter.so+01225623

[ 44] 0x00007fc916eb58fe /usr/local/MATLAB/R2011a/bin/glnxa64/../../bin/glnxa64/libmwbridge.so+00108798

[ 45] 0x00007fc916eb64ae /usr/local/MATLAB/R2011a/bin/glnxa64/../../bin/glnxa64/libmwbridge.so+00111790 mnParser+000622

[ 46] 0x00007fc916c5ed39 /usr/local/MATLAB/R2011a/bin/glnxa64/../../bin/glnxa64/libmwmcr.so+00322873 mcrInstance::mnParser_on_interpreter_thread()+000041

[ 47] 0x00007fc916c41db2 /usr/local/MATLAB/R2011a/bin/glnxa64/../../bin/glnxa64/libmwmcr.so+00204210

[ 48] 0x00007fc916c41ec0 /usr/local/MATLAB/R2011a/bin/glnxa64/../../bin/glnxa64/libmwmcr.so+00204480

[ 49] 0x00007fc90d570db6 /usr/local/MATLAB/R2011a/bin/glnxa64/../../bin/glnxa64/../../bin/glnxa64/libmwuix.so+00437686

[ 50] 0x00007fc90d57a13d /usr/local/MATLAB/R2011a/bin/glnxa64/../../bin/glnxa64/../../bin/glnxa64/libmwuix.so+00475453

[ 51] 0x00007fc90dfc60bd /usr/local/MATLAB/R2011a/bin/glnxa64/../../bin/glnxa64/../../bin/glnxa64/libuij.so+00217277 sysq::during_F<boost::weak_ptr<sysq::ws_ppeHook>, boost::shared_ptr<sysq::ws_ppeHook> > std::for_each<__gnu_cxx::__normal_iterator<boost::weak_ptr<sysq::ws_ppeHook>*, std::vector<boost::weak_ptr<sysq::ws_ppeHook>, std::allocator<boost::weak_ptr<sysq::ws_ppeHook> > > >, sysq::during_F<boost::weak_ptr<sysq::ws_ppeHook>, boost::shared_ptr<sysq::ws_ppeHook> > >(_gnu_cxx::_normal_iterator<boost::weak_ptr<sysq::ws_ppeHook>*, std::vector<boost::weak_ptr<sysq::ws_ppeHook>, std::allocator<boost::weak_ptr<sysq::ws_ppeHook> > > >, _gnu_cxx::_normal_iterator<boost::weak_ptr<sysq::ws_ppeHook>*, std::vector<boost::weak_ptr<sysq::ws_ppeHook>, std::allocator<boost::weak_ptr<sysq::ws_ppeHook> > > >, sysq::during_F<boost::weak_ptr<sysq::ws_ppeHook>, boost::shared_ptr<sysq::ws_ppeHook> >)+000077

[ 52] 0x00007fc90dfc7989 /usr/local/MATLAB/R2011a/bin/glnxa64/../../bin/glnxa64/../../bin/glnxa64/libuij.so+00223625

[ 53] 0x00007fc90dfc44ae /usr/local/MATLAB/R2011a/bin/glnxa64/../../bin/glnxa64/../../bin/glnxa64/libuij.so+00210094 svWS_ProcessPendingEvents(int, int, bool)+000494

[ 54] 0x00007fc916c401c7 /usr/local/MATLAB/R2011a/bin/glnxa64/../../bin/glnxa64/libmwmcr.so+00197063

[ 55] 0x00007fc916c4060a /usr/local/MATLAB/R2011a/bin/glnxa64/../../bin/glnxa64/libmwmcr.so+00198154

[ 56] 0x00007fc916c40d6f /usr/local/MATLAB/R2011a/bin/glnxa64/../../bin/glnxa64/libmwmcr.so+00200047

[ 57] 0x00007fc915756e9a /lib/x86_64-linux-gnu/libpthread.so.0+00032410

[ 58] 0x00007fc9154844bd /lib/x86_64-linux-gnu/libc.so.6+00992445 clone+000109

Thanks For your help!!