链接QtCreator&& OpenCv的 [英] Linking QtCreator && OpenCv

问题描述

我在从opencv(2.3.1)链接库时遇到问题，找不到解决方法. 我正在将qtCreator与mingw和预构建的vc10动态lib文件一起使用. 所以，这是我到目前为止所做的:

I'm having a problem linking a library from opencv(2.3.1) and can't find a way to resolve it.. I'm using qtCreator with mingw and the pre-built vc10 dynamic lib files. So, here is what I have done till now:

.pro文件:

TEMPLATE = app
INCLUDEPATH += "E:/opencv/build/include/"
INCLUDEPATH += "E:/opencv/build/include/opencv/"
INCLUDEPATH += "E:/opencv/build/include/opencv2/"

INCLUDEPATH += $$PWD/../opencv/build/x86/vc10
DEPENDPATH += $$PWD/../opencv/build/x86/vc10

win32:CONFIG(release, debug|release): LIBS += -L$$PWD/../opencv/build/x86/vc10/lib/ -lopencv_core231
else:win32:CONFIG(debug, debug|release): LIBS += -L$$PWD/../opencv/build/x86/vc10/lib/ -lopencv_core231d
win32:CONFIG(release, debug|release): LIBS += -L$$PWD/../opencv/build/x86/vc10/lib/ -lopencv_highgui231
else:win32:CONFIG(debug, debug|release): LIBS += -L$$PWD/../opencv/build/x86/vc10/lib/ -lopencv_highgui231d
win32:CONFIG(release, debug|release): LIBS += -L$$PWD/../opencv/build/x86/vc10/lib/ -lopencv_imgproc231
else:win32:CONFIG(debug, debug|release): LIBS += -L$$PWD/../opencv/build/x86/vc10/lib/ -lopencv_imgproc231d
win32:CONFIG(release, debug|release): LIBS += -L$$PWD/../opencv/build/x86/vc10/lib/ -lopencv_calib3d231
else:win32:CONFIG(debug, debug|release): LIBS += -L$$PWD/../opencv/build/x86/vc10/lib/ -lopencv_calib3d231d
...

我已经测试了一个使用来自opencv的highgui库的应用程序，它的编译和运行良好，但是当我尝试使用cvPyrDown(来自imgproc_c.h)时，它可以编译但无法正确加载该库，它意外退出"，并且代码-1073741515. 我不明白为什么会这样..正如您从.pro文件中看到的那样，我像highgui一样链接了imgproc库，但是它仍然无法正常工作！
有什么建议吗?

I have tested an application that used highgui libs from opencv and it compiled and worked nicely, but when I try to use cvPyrDown(from imgproc_c.h) it compiles but can't load the library correctly it "exits unexpectedly" with code -1073741515. I don't understand why that is.. as you can see from the .pro file I linked the imgproc libs just like the highgui, but it still won't work!
Any suggestions ?

修改

好吧，问题在于Visual Studio创建的库使用的命名约定与g ++不同，这就是为什么它不起作用的原因.如果是这样，我仍然无法解释为什么它可以与highgui库一起工作.想法?

Ok, the problem is that visual studio creates libraries with different naming conventions than g++ and that's why it won't work.. If this is true, I still can't explain why it works with the highgui libs.. Any ideas ?

推荐答案

这是哪个版本的Opencv?我建议尝试使用最新版本2.3，并使用CMake代替.pro文件，这是整个项目的构建系统.

Which version of Opencv is this? I suggest trying latest 2.3, and using CMake instead of .pro files, which is the build system for the overall project.

然后，您只需在CMakeLists.txt上归档-> open-project，就可以看看如何使用CMake设置示例.

Then you just file->open-project on the CMakeLists.txt, and you can just look at how examples are set up with CMake.

如果此是最新的，则1)highgui使用QT，因此可以在qt creator上更好地使用它； 2)在Windows上使用.pro进行构建可能未经过测试；对CMake的不可避免的需求不足为奇.

If this is latest, then 1) highgui uses QT so it makes sense that it might play nicer with qt creator and 2) building with .pro on windows might be untested; a unavoidable need for CMake would not be surprising.

编辑:查看库的CMakeLists.txt文件....

Edit: Look at the CMakeLists.txt files for the libraries ....

# CMakeLists.txt for /modules/highgui
 #YV
if (HAVE_QT)
if (HAVE_QT_OPENGL)
    set(QT_USE_QTOPENGL TRUE)
endif()
INCLUDE(${QT_USE_FILE})

SET(_RCCS_FILES src/window_QT.qrc)
QT4_ADD_RESOURCES(_RCC_OUTFILES ${_RCCS_FILES})

SET(_MOC_HEADERS src/window_QT.h )
QT4_WRAP_CPP(_MOC_OUTFILES ${_MOC_HEADERS})

set(HIGHGUI_LIBRARIES ${HIGHGUI_LIBRARIES} ${QT_LIBRARIES} ${QT_QTTEST_LIBRARY})
set(highgui_srcs ${highgui_srcs} src/window_QT.cpp ${_MOC_OUTFILES} ${_RCC_OUTFILES} )
endif()

if(WIN32)
   if(NOT HAVE_QT)
      set(highgui_srcs ${highgui_srcs} src/window_w32.cpp)
   endif()
  set(highgui_srcs ${highgui_srcs} src/cap_vfw.cpp src/cap_cmu.cpp   src/cap_dshow.cpp)
   if(HAVE_MIL)

    set(highgui_srcs ${highgui_srcs} src/cap_mil.cpp)
endif()
endif()

if(UNIX)
if(NOT HAVE_QT)        
    if(HAVE_GTK)
        set(highgui_srcs ${highgui_srcs} src/window_gtk.cpp)
    endif()
endif()
 ....
endif()

但是"imgproc"的CMakeLists.txt不做任何特定的检查...只是将buck传递给了主要的opencv lib:

But "imgproc"'s CMakeLists.txt doesn't do any specific checks ... just passes the buck to main opencv lib:

 define_opencv_module(imgproc opencv_core)

这篇关于链接QtCreator&& OpenCv的的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！