I am trying to compile cpp files from this link, but I am receiving the following errors:
>> mex OpticalFlow.cpp
LINK : error LNK2001: unresolved external symbol mexFunction
C:\Users\pc\AppData\Local\Temp\mex_Fe1hah\templib.x :
fatal error LNK1120: 1 unresolved externals
E:\MATLAB2\R2013A\BIN\MEX.PL: Error: Link of 'OpticalFlow.mexw32' failed.
>> mex GaussianPyramid.cpp
LINK : error LNK2001: unresolved external symbol mexFunction
C:\Users\pc\AppData\Local\Temp\mex_IWT6TB\templib.x : fatal error LNK1120: 1 unresolved externals
E:\MATLAB2\R2013A\BIN\MEX.PL: Error: Link of 'GaussianPyramid.mexw32' failed.
Creating library C:\Users\pc\AppData\Local\Temp\mex_5guviT\templib.x and object C:\Users\pc\AppData\Local\Temp\mex_5guviT\templib.exp
Coarse2FineTwoFrames.obj : error LNK2019: unresolved external symbol "public: static void __cdecl OpticalFlow::Coarse2FineFlow(class Image<double> &,class Image<double> &,class Image<double> &,class Image<double> const &,class Image<double> const &,double,double,int,int,int,int)" (?Coarse2FineFlow@OpticalFlow@@SAXAAV?$Image@N@@00ABV2@1NNHHHH@Z) referenced in function _mexFunction
Coarse2FineTwoFrames.mexw32 : fatal error LNK1120: 1 unresolved externals
E:\MATLAB2\R2013A\BIN\MEX.PL: Error: Link of 'Coarse2FineTwoFrames.mexw32' failed.
Error using mex (line 206)
Unable to complete successfully.
Can somebody help me, please?
The package you are trying to compile consists of three cpp files, but they should be compiled into a single mex file.
as a result they only have one mexFunction symbol defined in them.
Try
>> mex -O -largeArrayDims Coarse2FineTwoFrames.cpp GaussianPyramid.cpp OpticalFlow.cpp