How to Install and Use OpenCV 2.4.3 in Visual C 2010 Express?

Installing and Using OpenCV 2.4.3 in Visual C 2010 Express

Getting Started

To install OpenCV 2.4.3, begin by downloading the self-extracting archive from its official repository. Once extracted, it will create a directory where all the required files are located.

System Configuration

To use OpenCV effectively, add the directory containing OpenCV's DLLs to your system's PATH variable. This directory, located at C:opencvbuildx86vc10bin, is where the necessary libraries reside.

Visual C Setup

1. Create a new project in Visual C .

2. Configure Visual C 's include and library directories to match OpenCV's corresponding directories:

   • Include Directory: C:opencvbuildinclude
   • Library Directory: C:opencvbuildx86vc10lib

3. Add the following additional dependencies to your project's linker:

   opencv_calib3d243d.lib
   opencv_contrib243d.lib
   opencv_core243d.lib
   ...
   opencv_videostab243d.lib

Example Code

To test your setup, create a new source file and enter the following code:

#include <opencv2/highgui/highgui.hpp>
#include <iostream>

using namespace cv;
using namespace std;

int main()
{
    // Load an image
    Mat im = imread("c:/full/path/to/lena.jpg");
    if (im.empty()) 
    {
        cout << "Cannot load image!" << endl;
        return -1;
    }
    // Display the image
    imshow("Image", im);
    waitKey(0);
}

Compile and run the code using F5, and a window should appear displaying the loaded image.

Next Steps

Once OpenCV is integrated into your development environment, explore its samples and documentation to expand your knowledge and begin creating computer vision applications with ease.

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