Using Opencv with QT

omi1990

I have integrated opencv in qt .
added all in .pro file also.
qt can find library of cv but i m getting linker error on building it.
@
(?release@Mat@cv@@QAEXXZ)
detection.obj : error LNK2019: unresolved external symbol "public: virtual __thiscall cv::VideoCapture::~VideoCapture(void)" (??1VideoCapture@cv@@UAE@XZ) referenced in function __unwindfunclet$?on_start_clicked@Detection@@AAEXXZ$0
detection.obj : error LNK2019: unresolved external symbol "int __cdecl cv::waitKey(int)" (?waitKey@cv@@YAHH@Z) referenced in function "private: void __thiscall Detection::on_start_clicked(void)" (?on_start_clicked@Detection@@AAEXXZ)
detection.obj : error LNK2019: unresolved external symbol "public: virtual bool __thiscall cv::VideoCapture::isOpened(void)const " (?isOpened@VideoCapture@cv@@UBE_NXZ) referenced in function "private: void __thiscall Detection::on_start_clicked(void)" (?on_start_clicked@Detection@@AAEXXZ)
detection.obj : error LNK2019: unresolved external symbol "public: __thiscall cv::VideoCapture::VideoCapture(int)" (??0VideoCapture@cv@@QAE@H@Z) referenced in function "private: void __thiscall Detection::on_start_clicked(void)" (?on_start_clicked@Detection@@AAEXXZ)
release\Detection.exe : fatal error LNK1120: 5 unresolved externals
command failed with exit code 1120
command failed with exit code 2
The process "C:\Qt\qtcreator-2.3.1\bin\jom.exe" exited with code 2.
Error while building project Detection (target: Desktop)
When executing build step 'Make'
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i am using opencv 2.0 and qt creator 2.3.1

pls help me with this.

qxoz

Can you post your .pro file?

omi1990

#-------------------------------------------------

Project created by QtCreator 2011-11-25T00:34:05

#-------------------------------------------------

QT += core gui

TARGET = Detection
TEMPLATE = app

SOURCES += main.cpp
detection.cpp

HEADERS += detection.h

FORMS += detection.ui
INCLUDEPATH += C:\OpenCV2.0\include
LIBS += -LC:\OpenCV2.0\lib
-lopencv_core220
-lopencv_highgui220
-lopencv_imgproc220
-lopencv_features2d220
-lopencv_calib3d220

AnuruddhaH

Use forward slashes in paths. \ is used as a separator for multiple entries.

INCLUDEPATH += C:/OpenCV2.0/include

LIBS += -LC:/OpenCV2.0/lib
-lopencv_core220
-lopencv_highgui220
-lopencv_imgproc220
-lopencv_features2d220
-lopencv_calib3d220