Introduction to OpenCV Dr. Chung-Hao Chen Haole Guo Sep 2011

Index 1.What is OpenCV ？ 2.What can OpenCV do ？ 3.How to setup OpenCV ？

What is OpenCV ? OpenCV is a based on C / C + + language, open source image processing library Develop by Inter Free to use

What can OpenCV do ？ Image data manipulation Image and video I/O Matrix and vector manipulation and linear algebra routines Various dynamic data structures Basic image processing Structural Camera calibration Motion analysis Object recognition Basic GUI Image labeling

How to setup openCV ? Downlinks: 1. OpenCV lib VS Codeblock 4. Cmake

Download OpenCV and install Download the OpenCV Windows installer from SourceForge - "OpenCV win32-vs2008.exe". Download the OpenCV Windows installer from SourceForge Install it to a folder (without any spaces in it), say "C:\OpenCV2.1\". This article will refer to this path as $openCVDir During installation, enable the option "Add OpenCV to the system PATH for all users".

Setup OpenCV in VS Configure Visual Studio Open VC++ Directories configuration: Tools > Options > Projects and Solutions > VC++ Directories Choose "Show directories for: Include files" – Add "$openCVDir\include\opencv" Choose "Show directories for: Library files" – Add "$openCVDir\lib" Choose "Show directories for: Source files" – Add "$openCVDir\src\cv" – Add "$openCVDir\src\cvaux" – Add "$openCVDir\src\cxcore" – Add "$openCVDir\src\highgui"

Setup OpenCV in VS Configure your Project After you've created a project you'll need to add the OpenCV dependencies. Open Project Properties: Project > %projectName% Properties... Open Linker Input properties: Configuration Properties > Linker > Input Open the "..." window to edit "Additional Dependencies" and on each line put: – "cv210.lib" – "cxcore210.lib" – "highgui210.lib" – And any other lib file necessary for your project Your project should now build. If you get any errors try restarting Visual Studio and then doing a clean Rebuild.

Setup openCV in VS Support video on youtube

Setup openCV in Codeblock 1.Build project

Setup OpenCV in Codeblock 2.Name and address

Setup openCV in codeblock 3.Write a test program

Setup openCV in codeblock Sample program #include "cv.h" #include "highgui.h" int main( int argc, char** argv ) { – IplImage* pImg; – if( argc == 2 && – (pImg = cvLoadImage( argv[1], 1)) != 0 ) { cvNamedWindow( "Image", 1 ); cvShowImage( "Image", pImg ); cvWaitKey(0); cvDestroyWindow( "Image" ); cvReleaseImage( &pImg ); return 0; – } – return -1; }

Setup openCV in codeblock 4. Go setup build options

Setup openCV in codeblock 5.Build option- search directories - complier

Setup openCV in codeblock 6.Build option – search directories - linker

Setup openCV in codeblock 7.Build option – linker settings

Setup openCV in codeblock 8. Setup input image

Setup openCV in codeblock 9.Result output: