如何转换a'mat。将cv :: mat; s＆quot; s＆quote;在“ OpenCvmex.hpp”中使用API​​。由Matlab提供

Question

我尝试读取由Matlaband创建的“ .mat”文件中的数据，将保存在“ .mat”中的矩阵转换为OpenCV的“ cv :: mat”格式。也就是说，首先打开“ .mat”文件，然后使用mxarrar使用mat.h键入数据，然后使用MATLAB提供的API转换，该API在<<<<<代码> opencvmex.h 文件。

我已经清楚地完成了该过程，现在我成功地获得了mxarray。但是，当我尝试将mxarray转换为cv :: mat时，问题就会发生，并指出该函数是无可避免的。代码如下：

//#include <torch/script.h> // One-stop header.
//
//#include <iostream>
//#include <memory>
#include<stdlib.h>
#define MATLAB_MEX_FILE
#include <mat.h>
#include <opencvmex.hpp>
//#include <opencv2/highgui.hpp>



int main(int argc, const char* argv[]){
    // Load mat file as model's input

    MATFile* pmatFile = NULL;
    mxArray* pMxArray = NULL;

    // Open mat file with given API
    pmatFile = matOpen("image.mat", "r");
    // Read mat from .mat file with Name(Here "I" in mat file)
    pMxArray = matGetVariable(pmatFile, "I");
    // Varible to save mat read from mat file
    cv::Mat image_from_mat;
    // Convert from mxArray to cv::Mat
    ocvMxArrayToMat_double(pMxArray, &image_from_mat);

    // Varible to save mat read from mat file
    //cv::Ptr<cv::Mat> image_from_mat = ocvMxArrayToMat_double(pMxArray);
    // Convert from mxArray to cv::Mat
    

    //auto img_tensor = torch::CPU(torch::kFloat32).tensorFromBlob(pMxArray, { 1, 224, 224, 3 });
    return 0;
}

此错误是

LNK2019 unresolved external symbol "struct cv::Ptr<class cv::Mat> __cdecl ocvMxArrayToMat_double(struct mxArray_tag const *,bool)" (?ocvMxArrayToMat_double@@YA?AU?$Ptr@VMat@cv@@@cv@@PEBUmxArray_tag@@_N@Z)，The symbol is referenced in the function `main`    Load_Mat_Cpp    C:\Users\Dalek\Documents\Private\UCAS_SIA\CPP_Reconstruction\Load_Mat_Cpp\main.obj  

在VS2019中配置的，并且Prop文件的内容如下：

<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
  <ImportGroup Label="PropertySheets" />
  <PropertyGroup Label="UserMacros" />
  <PropertyGroup />
  <ItemDefinitionGroup>
    <ClCompile>
      <AdditionalIncludeDirectories>C:\tools\opencv\build\include\opencv2;C:\tools\opencv\build\include;C:\Program Files\Polyspace\R2021a\extern\include;C:\tools\libtorch\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
    </ClCompile>
    <Link>
      <AdditionalLibraryDirectories>C:\tools\opencv\build\x64\vc15\lib;C:\Program Files\Polyspace\R2021a\extern\lib\win64\microsoft;C:\tools\libtorch\lib;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
      <AdditionalDependencies>asmjit.lib;c10.lib;caffe2_module_test_dynamic.lib;clog.lib;cpuinfo.lib;fbgemm.lib;libprotobufd.lib;libprotobuf-lited.lib;libprotocd.lib;mkldnn.lib;torch_cpu.lib;torch.lib;libmat.lib;libmx.lib;libmex.lib;libeng.lib;opencv_world3413.lib;%(AdditionalDependencies)</AdditionalDependencies>
    </Link>
  </ItemDefinitionGroup>
  <ItemGroup />
</Project>

所有路径和依赖关系已仔细检查并应还算不错，也可以在path 已经很好地添加了。

为什么会发生此错误，如何将.mat文件转换为cv :: mat格式？