Installing OpenCV2.4.1 on windows 7 x64 - Mingw & codeblocks
Posted: 19 June 2012 01:12 PM   [ Ignore ]
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Joined  2012-06-17
Total Posts:  1
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Hi,
I followed this tutorial

http://stackoverflow.com/questions/10860352/getting-started-with-opencv-2-4-and-mingw-on-windows-7

I configured the same except instead of x86, i put x64.

This is the example

#include "opencv2/highgui/highgui.hpp"
#include <iostream>

using namespace cv;
using namespace std;

int main(int argcchar** argv)
{
Mat im 
imread(argc == argv[1] "lena.jpg"1);
if (
im.empty())
{
cout 
<< "Cannot open image!" << endl;
return -
1;
}

imshow
("image"im);
waitKey(0);

return 
0;
}

when i compile main.cpp


C:\Users\rgap\Desktop>g++ -I"C:\opencv\build\include" -L"C:\opencv\build\x64\mingw\lib" main.cpp -lope
ncv_core241 -lopencv_highgui241 -o main

I get the following error


C:\Users\rgap\AppData\Local\Temp\ccDgmPAT.o:main.cpp:(.text+0x62): undefined reference to `cv::imread(
std::string const&, int)'
C:\Users\rgap\AppData\Local\Temp\ccDgmPAT.o:main.cpp:(.text+0xc7): undefined reference to 
`cv::_InputA
rray
::_InputArray(cv::Mat const&)'
C:\Users\rgap\AppData\Local\Temp\ccDgmPAT.o:main.cpp:(.text+0xfe): undefined reference to `cv::imshow(
std::string const&, cv::_InputArray const&)'
C:\Users\rgap\AppData\Local\Temp\ccDgmPAT.o:main.cpp:(.text+0x120): undefined reference to `cv::waitKe
y(int)'
C:\Users\rgap\AppData\Local\Temp\ccDgmPAT.o:main.cpp:(.text
$_ZN2cv3MatD1Ev[cv::Mat::~Mat()]+0x2b): und
efined reference to 
`cv::fastFree(void*)'
C:\Users\rgap\AppData\Local\Temp\ccDgmPAT.o:main.cpp:(.text$_ZN2cv3Mat7releaseEv[cv::Mat::release()]+0
x3c): undefined reference to `cv::Mat::deallocate()'
collect2ld devolvió el estado de salida 1

Is this a bug? :(

thanks smile

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