Opencv learning-Installation Summary of various environments (Summary)

Windows ms visual c ++ install opencv

Download
Opencv installer and install it. I assume you have installed onto C:/program files/opencv.

Setup ms visual c ++

I write details based on MS Visual Studio 2005. Follow menus of MS VISUAL C ++ window:

• Tools> Options> projects and solutions> VC ++ directories>
• Show directory for:> include files. Now add

  C:/Program Files/OpenCV/cv/includeC:/Program Files/OpenCV/cvaux/includeC:/Program Files/OpenCV/cxcore/includeC:/Program Files/OpenCV/otherlibs/highguiC:/Program Files/OpenCV/ml/includeC:/Program Files/OpenCV/otherlibs/cvcam/include

• Show directory for:> library files. Now add

  C:/Program Files/OpenCV/lib

• (Option) show directory for:> source files. Now add

  C:/Program Files/OpenCV/cv/srcC:/Program Files/OpenCV/cvaux/srcC:/Program Files/OpenCV/cxcore/srcC:/Program Files/OpenCV/otherlibs/highguiC:/Program Files/OpenCV/otherlibs/cvcam/src/windows

Setup ms visual c ++ for each project

• Right click Project> property>
• Configuration proeperties> linker> input> additional dependencies. Now add
  • Cv. Lib cxcore. Lib cvaux. Lib highgui. Lib ml. Lib cvcam. Lib
• Change 'configuration' drop down menu from release (Debug) to debug (release ).
• Do the same thing (Add. libs to input)

Or, add below codes into your source codes abve # include (s ).

#ifdef _MSC_VER#pragma comment(lib, "cv.lib")#pragma comment(lib, "cxcore.lib")#pragma comment(lib, "cvaux.lib")#pragma comment(lib, "highgui.lib")#pragma comment(lib, "ml.lib")#pragma comment(lib, "cvcam.lib")#endif

Mingw gcc/g ++ install mingw

Mingwis a collection of freely available and freely distributable windowsspecific header files and import libraries, augmenting the GNU compilercollection, (GCC), and its associated tools, (GNU binutils). mingwprovides a complete open source
Programming tool set which is suitablefor the development of Native Windows programs that do not depend onany 3rd-party C Runtime DLLs.

• Download automated mingw installer from
  Mingw project page and install.
• Install GCC and G77
• Assume mingw is installed on C:/mingw

• Mingw originally does not include gdb debugger. If you want it, download .tar.bz2 of GNU source-level debugger from
  
  Mingw project page and unarchive it.
• Copy files into C:/mingw

How to compile

g++ test.cpp -I"C:/Program Files/OpenCV/cv/include" -I"C:/Program Files/OpenCV/cxcore/include" -I"C:/Program Files/OpenCV/otherlibs/highgui" -L"C:/Program Files/OpenCV/lib" -lcxcore -lcv -lhighgui -lcvaux -lml

How to Use mingw on cygwin

Cygwinis a Linux-like environment for Windows. it consists of two parts: adll (cygwin1.dll) which acts as a Linux API emulation layer providingsubstantial Linux API functionality. a collection of tools whichprovide Linux look and feel.

Http://www.cygwin.com/

Setup to use mingw g ++ instead of cygwin g ++

$ export PATH=/cygdrive/c/MinGW/bin:$PATH

Linux gcc/g ++

Download
Opencv source codes (.tar.gz)

Root User

tar zxvf opencv-1.0.0.tar.gz; cd opencv-1.0.0./configuremakemake install

General User

tar zxvf opencv-1.0.0.tar.gz; cd opencv-1.0.0./configure --prefix=$HOME/usrmakemake install# configurationexport PATH=$HOME/usr/bin/:$PATHexport LD_LIBRARY_PATH=$HOME/usr/lib:$LD_LIBRARY_PATHexport PKG_CONFIG_PATH=$HOME/usr/lib/pkgconfig:$PKG_CONFIG_PATHexport MANPATH=$HOME/usr/man:$MANPATH

Compilation is

g++ `pkg-config --cflags opencv` foo.c -o foo `pkg-config --libs opencv`

It must be equivalent

g++ -I$HOME/usr/include/opencv foo.c -o foo -L$HOME/usr/lib -lcxcore -lcv -lhighgui -lcvaux -lml

Where $ home/usr is the prefix specified at the./configure step.

MacOS X

I tried long time ago, there shoshould exist easier ways nowadays.

• Install xcode from OS CD, 'custom' to install everything.
• Get opencv and
  Http://lestang.org/article45.html.
• Copy these files into opencv.
• ./Configure to create cvconfig. h.
• Double click xcode project in _ make, add path of the cvconfig. h to highgui.
• Build, try projects of samples.
• Toexecute builded program on command line, copy_make/build/debug/*. Framework ~ /Library/frameworks. If frameworksdoes not exist, create it.

  $ _make/build/Debug/kmeans.app/Contents/MacOS/kmeans

Sample Test code

#include #include #include #include #include int main(int argc, char *argv[]){ // Nothing but create a window cvNamedWindow("mainWin", CV_WINDOW_AUTOSIZE); cvMoveWindow("mainWin", 100, 100); cvWaitKey(0); return 0;}