pollausen85's profile - activity

Thanks! I did what you suggested, now my code is:

//Create matrix stromal pop
    cv::Mat stromalHistogram(1, i_stromalIID.size(), CV_32F);
    float* ref_ptr = stromalHistogram.ptr<float>(0);
    std::copy(i_stromalIID.begin(), i_stromalIID.end(), stdext::checked_array_iterator<float*>(ref_ptr, stromalHistogram.cols));

and std::vector<double> hist_out now is std::vector<float> hist_out.

Unfortunately nothing changed. Any other suggestions?

I'm trying to calculate the histogram of a matrix composed by only one row. I wrote this code in VS2015:

//Create matrix stromal pop
    cv::Mat stromalHistogram(1, i_stromalIID.size(), CV_32F);
    float * ref_ptr = stromalHistogram.ptr<float>(0);
    std::copy(i_stromalIID.begin(), i_stromalIID.end(), stdext::checked_array_iterator<float *>(ref_ptr, stromalHistogram.cols));

#ifdef _DEBUG
    std::cout << "Matrix =" << std::endl << stromalHistogram << std::endl;
#endif

    // calculate histogram for stromal pop
    auto itRangesRef = std::minmax_element(i_stromalIID.begin(), i_stromalIID.end());
    float stromalRanges[] = {*itRangesRef.first, *itRangesRef.second};
    const float * rangesRef[] = { stromalRanges };
    const int channel = 0;
    const int histSize = 256;
    std::vector<float> hist_out;
    cv::calcHist(&stromalHistogram, 1, &channel, cv::Mat(), hist_out, 1, &histSize, rangesRef);

i_stromalIID is a std::vector<double> passed from the extern. The cv::Mat stromalHistogram is filled correctly because when I print it, everything is as I expected (1 row, 1204 columns). But when the program runs the cv::calcHist, I receive the following error:

OpenCV Error: Assertion failed (d == 2 && (sizes[0] == 1 || sizes[1] == 1 || sizes[0]*sizes[1] == 0)) in cv::_OutputArray::create, file D:\Development\lib\OpenCV3.1\opencv-master\modules\core\src\matrix.cpp, line 2363

I tried to debug the OpenCV code, and the error is in cv::calcHist when it tries to do:

void cv::calcHist( const Mat* images, int nimages, const int* channels,
                   InputArray _mask, OutputArray _hist, int dims, const int* histSize,
                   const float** ranges, bool uniform, bool accumulate )
{
      .....
      .....

      _hist.create(dims, histSize, CV_32F);
}

Then inside matrix.cpp is called:

void _OutputArray::create(int d, const int* sizes, int mtype, int i,
                          bool allowTransposed, int fixedDepthMask) const
{
      .....
      .....

      if( k == STD_VECTOR || k == STD_VECTOR_VECTOR )
      {
        CV_Assert( d == 2 && (sizes[0] == 1 || sizes[1] == 1 || sizes[0]*sizes[1] == 0) );
        .....
        .....
      }
}

And this assert fails because d in my case is equal to 1.

What am I doing wrong?

As a workaround I surrounded the __cpuidex call with:

#if _MSC_VER >=1600
   __cpuidex(cpuid_data, 7, 0);
#endif

In this way since in my case _MSC_VER = 1500 the compiler skip this call, and I was able to compile successfully.

Thanks! In order to report this bug should I follow the link you posted above?

This is the complete error: ..\..\..\Development\lib\OpenCV3.1\opencv-master\modules\core\src\system.cpp(298) : error C3861: '__cpuidex': identifier not found and specific line is:

#if defined _MSC_VER && (defined _M_IX86 || defined _M_X64)
        __cpuidex(cpuid_data, 7, 0);

In my case _MSC_VER = 1500 and _M_IX86 = 600.

My OS is 64bit but I'm trying to compile x86.

With your help I solved errors related to stdint.h and data(), but I still have the error about the __cpuidex and the problem is in modules\core\src\system.cpp. Do you have other suggestions?

I'm trying to build Opencv 3.1 with Visual Studio 2008 but I get some errors as:

• stdint.h not found

• __cpuidex not defined

• data() is not a member function of std::vector

Is it possible buld Opencv 3.1 with VS2008? If yes, what do I have to do? If no, which is the last version compatible with VS2008? Thanks!

I'm trying to compile opencv3.1 for x86 application using VS2015. Everything goes okay but when the building is done,inside the lib folder, I get all the libraries while I would like to get only the opencv_world310.lib as in the x64 folder. What am I doing wrong? Is there some options to use? Thanks!