Compile Error ( MEX could not find the library )

hi i'm using matlab 2013a x64 and win7 x64 . install the opencv path (C:\opencv)

Compile Error :

>> mex -LC:\opencv\build\x64\vc11\lib -IC:\opencv\build\include\opencv -lcv -lcxcore me_HaarDetectOpenCV.cpp

Warning: MEX could not find the library "cv" specified with -l option. 
         MEX looked for a file with one of the names: 
               cv.lib 
               libcv.lib 
         MEX looked for the library in the following directories: 
               D:\Program Files (x86)\Microsoft Visual Studio 11.0\VC\LIB\amd64 
               D:\Program Files (x86)\Microsoft Visual Studio 11.0\VC\ATLMFC\LIB\amd64 
               C:\Program Files (x86)\Windows Kits\8.0\lib\win8\um\x64 
               D:\Program Files\MATLAB\R2013a\extern\lib\win64 
               D:\Program Files\MATLAB\R2013a\extern\lib\win64\microsoft 
               C:\opencv\build\x64\vc11\lib 

Warning: MEX could not find the library "cxcore" specified with -l option. 
         MEX looked for a file with one of the names: 
               cxcore.lib 
               libcxcore.lib 
         MEX looked for the library in the following directories: 
               D:\Program Files (x86)\Microsoft Visual Studio 11.0\VC\LIB\amd64 
               D:\Program Files (x86)\Microsoft Visual Studio 11.0\VC\ATLMFC\LIB\amd64 
               C:\Program Files (x86)\Windows Kits\8.0\lib\win8\um\x64 
               D:\Program Files\MATLAB\R2013a\extern\lib\win64 
               D:\Program Files\MATLAB\R2013a\extern\lib\win64\microsoft 
               C:\opencv\build\x64\vc11\lib 

     Creating library C:\Users\AsUs\AppData\Local\Temp\mex_47j5SQ\templib.x and object C:\Users\AsUs\AppData\Local\Temp\mex_47j5SQ\templib.exp 
  me_HaarDetectOpenCV.obj : error LNK2019: unresolved external symbol cvCreateImage referenced in function mexFunction 
  me_HaarDetectOpenCV.obj : error LNK2019: unresolved external symbol cvReleaseImage referenced in function mexFunction 
  me_HaarDetectOpenCV.obj : error LNK2019: unresolved external symbol cvCreateMemStorage referenced in function mexFunction 
  me_HaarDetectOpenCV.obj : error LNK2019: unresolved external symbol cvReleaseMemStorage referenced in function mexFunction 
  me_HaarDetectOpenCV.obj : error LNK2019: unresolved external symbol cvGetSeqElem referenced in function mexFunction 
  me_HaarDetectOpenCV.obj : error LNK2019: unresolved external symbol cvLoad referenced in function mexFunction 
  me_HaarDetectOpenCV.obj : error LNK2019: unresolved external symbol cvEqualizeHist referenced in function mexFunction 
  me_HaarDetectOpenCV.obj : error LNK2019: unresolved external symbol cvReleaseHaarClassifierCascade referenced in function mexFunction 
  me_HaarDetectOpenCV.obj : error LNK2019: unresolved external symbol cvHaarDetectObjects referenced in function mexFunction 
  me_HaarDetectOpenCV.mexw64 : fatal error LNK1120: 9 unresolved externals 

    D:\PROGRA~2\MATLAB\R2013A\BIN\MEX.PL: Error: Link of 'me_HaarDetectOpenCV.mexw64' failed. 

Error using mex (line 206)
Unable to complete successfully. 
>>

how fix error and compile (created me_HaarDetectOpenCV.mexw64)??

[Walter Roberson]

Could you confirm that libcv.lib or cv.lib are in C:\opencv\build\x64\vc11\lib ?

[jafar]

@Walter Roberson

not found libcv.lib or cv.lib in C:\opencv\build\x64\vc11\lib .

Answer 1

[jafar]

i'm using code to the created the MEX file (me_HaarDetectOpenCV.mexw64)

mex -largeArrayDims -I'C:\opencv\build\include' -L'C:\opencv\build\x64\vc11\lib\realese'  -lopencv_core247 -lopencv_imgproc247 -lopencv_objdetect247 me_HaarDetectOpenCV.cpp

[Walter Roberson]

To check: you solved the problem? If so, would was the key change you needed to make?

Answer 2

[Walter Roberson]

You do not have the cv library that it needs to link against, or else you have the library in a different directory.

Perhaps you downloaded opencv but did not tell it to compile itself.

[jafar]

@ Walter Roberson i'm edit me_HaarDetectOpenCV.cpp :

#include "D:\Program Files\MATLAB\R2013a\extern\include\mex.h"
#include "C:\opencv\build\include\opencv\cv.h" 
#include "C:\opencv\build\include\opencv\highgui.h"
#include "C:\opencv\build\include\opencv\cxcore.h"

but compile error :
>> mex  me_HaarDetectOpenCV.cpp
   Creating library C:\Users\AsUs\AppData\Local\Temp\mex_Z52RZ_\templib.x and object C:\Users\AsUs\AppData\Local\Temp\mex_Z52RZ_\templib.exp 
me_HaarDetectOpenCV.obj : error LNK2019: unresolved external symbol cvReleaseMemStorage referenced in function mexFunction 
me_HaarDetectOpenCV.obj : error LNK2019: unresolved external symbol cvReleaseHaarClassifierCascade referenced in function mexFunction 
me_HaarDetectOpenCV.obj : error LNK2019: unresolved external symbol cvReleaseImage referenced in function mexFunction 
me_HaarDetectOpenCV.obj : error LNK2019: unresolved external symbol cvGetSeqElem referenced in function mexFunction 
me_HaarDetectOpenCV.obj : error LNK2019: unresolved external symbol cvHaarDetectObjects referenced in function mexFunction 
me_HaarDetectOpenCV.obj : error LNK2019: unresolved external symbol cvEqualizeHist referenced in function mexFunction 
me_HaarDetectOpenCV.obj : error LNK2019: unresolved external symbol cvCreateMemStorage referenced in function mexFunction 
me_HaarDetectOpenCV.obj : error LNK2019: unresolved external symbol cvCreateImage referenced in function mexFunction 
me_HaarDetectOpenCV.obj : error LNK2019: unresolved external symbol cvLoad referenced in function mexFunction 
me_HaarDetectOpenCV.mexw64 : fatal error LNK1120: 9 unresolved externals 

    D:\PROGRA~2\MATLAB\R2013A\BIN\MEX.PL: Error: Link of 'me_HaarDetectOpenCV.mexw64' failed. 

Error using mex (line 206)
Unable to complete successfully.

created the MEX file :

me_HaarDetectOpenCV.mexw64.manifest

me_HaarDetectOpenCV.mexw64.map