How to configure opencv 2.3 with qt creator to use the stock mingw compiler from qt sdk installation

Question

Sorry for asking a question thats already asked by some.. But even after many days of search and tries i couldnt make opencv work with qt creator.. Hope any body can give me the steps for doing so.

Last time i tried by calling just one opencv specific function to check if it compiles correctly, but its giving some errors which are due to linking problems, i have built the opencv library using my mingw compiler from code blocks as described in some of the tutorials, even that didnt work.

I'm getting this error

:-1: error: cannot find -lopencv_core

:-1: error: collect2: ld returned 1 exit status

My pro file looks as follows

QT += core

TARGET = Open_cv_integration

CONFIG += console

TEMPLATE = app

SOURCES += main.cpp

LIBS += "C:/opencv2.2MinGW/lib/libopencv_core231.dll.a"

LIBS += -lm -lopencv_core -lopencv_highgui -lopencv_video -lopencv_imgproc

actually this is working for me INCLUDEPATH += C:/opencv2.2MinGW/include LIBS += C:/opencv2.2MinGW/bin/*.dll and i had to copy all dll's required for me to the system32 directory. — user1159585

krzych krzych · Accepted Answer · 2012-01-20T09:27:45

LIBS += \
  -LD:\your lib directory\ -llibopencv_highgui231 \
INCLUDEPATH += \
   D:/your include dir/include/

should work for you. QtCreator has very good help, and there is said how to add lib to project.

How to configure opencv 2.3 with qt creator to use the stock mingw compiler from qt sdk installation

1 Answers