Build opencv 2.2 using mex with VS2010 on matlab r2011a
網路上這類文章不下少數,而本篇文章將著重在如何將opencv2.2版利用VS2010的編譯器,用mex編成matlab r2011a版可呼叫的file(新版本所修改的地方)。(註:mex為一編譯器,可將c/c++程式編成為matlab執行檔)
編mex不外乎幾個步驟:
- 安裝Visual Studio 2010, MATLAB r2011a, opencv 2.2
- setup matlab中的mex
- 編輯matlab的mexopts.bat ( C:\Users\hothero\AppData\Roaming\MathWorks\MATLAB\R2011a )
- 在"set MATLAB=%MATLAB%"上方輸入"set OPENCVDIR=C:\OpenCV2.2"
- 在"set LIB="後方輸入";%OPENCVDIR%\lib;%OPENCVDIR%\bin"
- 在"set INCLUDE="後方輸入";%OPENCVDIR%\include\opencv;%OPENCVDIR%\include;%OPENCVDIR%\include\opencv2"
- 在"set LINKFLAGS="後方輸入" opencv_core220.lib opencv_highgui220.lib opencv_video220.lib opencv_ml220.lib opencv_legacy220.lib opencv_imgproc220.lib "
- 在matlab中編一檔案OpenCVTest.cpp
#include "highgui.h" #include "mex.h" void mexFunction(int nlhs,mxArray *plhs[],int nrhs,const mxArray *prhs[]) { IplImage *InImage; InImage = cvLoadImage("lena.bmp",-1); CvSize Size1 = cvGetSize(InImage); //建立視窗(視窗名稱,參數) cvNamedWindow("InImage",1); //顯示影像(視窗名稱,影像檔案) cvShowImage("InImage",InImage); cvWaitKey(0); //按下任意按鍵可將圖片關閉 }
- 後續步驟可參考:http://blog.yam.com/dainn/article/26676311
- 輸入"mex OpenCVTest.cpp"
- 若成功,cpp檔所在資料夾則會出現"OpenCVTest.mexw32"檔案
- 輸入"mex -c OpenCVTest.cpp"
- 若成功,cpp檔所在資料夾則會出現"OpenCVTest.obj"檔案
- 接著將lena複製到該資料夾
- 輸入"OpenCVTest"執行即可