qt 非常详细win7 qt opencv

1、++环境参考前博文先搭建

2、下载版本，安装。运行

【项目】那编译器选择：。另外，重新编译要使用编译。把“\\bin”添加到环境变量PATH中。

在cmd中gcc-v看到4.4版本。

3.编译OpenCV，并测试例子（按照下面例子测试成功）

qtcreator2.4.0+qt4.7.4+mingw+opencv2.2(win7-32位)配置 http://www.xuebuyuan.com/2162023.html

本实验中2.3.1没有下载成功，所以采用了opencv2.2的版本。

或：OPencv库编译也可参考此文：https://dotuyau.wordpress.com/2014/04/25/opencv_qt_windows/

主要参考下面英文文章：

StepstobuildOpenCV2.3.1withQtandMinGW:

1.InstallQtSDKwiththeC++compileroption(MinGW).Youcandownloadithere.

2.Add“D:\QtSDK\mingw\bin”tothesystemPATH.

3.DownloadandinstallCMake(2.8.5).

4.DownloadandinstallOpenCV2.3.1(OpenCV-2.3.1-win-superpack.exe).

5.RunCMakeGUI.

6.Setthesourcecode:“D:\OpenCV2.3.1_src"

7.Setwheretobuildbinariesto:“D:\OpenCV2.3.1_out”.

8.PressConfigure

9.LetCMakecreatethenewfolder.

10.Specifythegenerator:MinGWMakefiles.

11.Select“SpecifyNativeCompilers”andclickNext.

12.ForCset:“D:\QtSDK\mingw\bin\gcc.exe”

13.ForC++set:“D:\QtSDK\mingw\bin\g++.exe”

14.ClickFinish

15.Intheconfigurationscreentypein“DEBUG”(or“RELEASE”ifyouwanttobuildareleaseversion)forCMAKE_BUILD_TYPE.CheckBUILD_EXAMPLESifyouwant.CheckWITH_QT.

16.Clickconfigureagain.

17.Theconfigurescreenwillmakeyouspecifythe"CUDA_TOOLKIT_ROOT_DIR"path.

setCUDA_TOOLKIT_ROOT_DIRto:"D:/QtSDK/Desktop/Qt/4.7.3/mingw/bin"

18.Clickconfigureagain.Clickgenerate.CloseCMake.

19.Goto"D:\OpenCV2.3.1_out"DIRandtype“mingw32-

make”andhitenter(thismighttakesometime).