Qt 5.0.2 MinGw opencv2.4.4 integration



  • Hi all!

    I'm trying to integrate opencv to Qt environment.

    Here is what I've done so far;
    @- Installed Qt 5.0.2 - 32bit (with qt creator 2.7.0 and mingw compiler- not msvc)

    • Installed opencv2.4.4 under C:\OpenCv\
    • Added C:\OpenCv\build\x86\mingw\lib and C:\OpenCv\build\x86\mingw\bin directories to the ENVIRONMENT VARIABLES.@

    and here is my .pro file

    @
    INCLUDEPATH += C:\OpenCv\build\include
    INCLUDEPATH += "C:\OpenCv\modules\core\include"
    "C:\OpenCv\modules\highgui\include"
    BASE_PATH = c:/OpenCv/build/x86/mingw
    CONFIG(release,debug|release)
    {
    win32: LIBS += -L$$BASE_PATH/lib/ -lopencv_calib3d244
    -lopencv_contrib244
    -lopencv_core244
    -lopencv_features2d244
    -lopencv_flann244
    -lopencv_gpu244
    -lopencv_highgui244
    -lopencv_imgproc244
    -lopencv_legacy244
    -lopencv_ml244
    -lopencv_objdetect244
    -lopencv_video244
    }
    CONFIG(debug,debug|release)
    {
    win32: LIBS += -L$$BASE_PATH/lib/ -lopencv_calib3d244d
    -lopencv_contrib244d
    -lopencv_core244d
    -lopencv_features2d244d
    -lopencv_flann244d
    -lopencv_gpu244d
    -lopencv_highgui244d
    -lopencv_imgproc244d
    -lopencv_legacy244d
    -lopencv_ml244d
    -lopencv_objdetect244d
    -lopencv_video244d
    }
    @

    When I try to build the project it gaves me following error:
    @:-1: error: cannot find -lopencv_calib3d244d@

    I've noticed that the files under the \lib\ folder are named like this;
    @libopencv_calib3d244.dll.a
    libopencv_contrib244.dll.a
    ...@

    However I couldn't add .a files to the project.

    Is there a missing step or anything else that I am not doing correctly?

    What sould I do now?

    Best regards.



  • With MinGW compiler you should include libs like this:

    • llibopencv_highgui244 - lib at the start.

    Are you sure you need all the libs you included? :)


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