Emgu CV is a huge library of “wrapper” functions that allows calling OpenCV functions from a Visual Studio Windows Forms application.; Author: ShubhamSaxena.
What is Emgu CV? Before learning what is Emgu CV, one should know what is Open CV. Open CV It stands for Open Source Computer Vision, it was designed especially for computational efficiency with strong focus on real time applications. It is written in optimized C/C, and can take advantage of multi-core processing. In Image processing, it has been a great boon for the developers. Emgu CV Its is essentially a huge library of “wrapper” functions that allows calling OpenCV functions from a Visual Studio Windows Forms application.
Emgu Cv Essentials Pdf
It is necessary because Visual Studio/.NET is an “interpreted” environment that cannot directly call functions written in native C/C. In this tutorial, we will start configuring our Visual Studio and environment for developing applications using EmguCV. Firstly, we need to download some of the essential tools.
We will be using the most stable versions though the new versions are also available. (version 2.4.2 is available but had various issues so I’m doing it with the most stable version found 2.3.0) Once you have installed all this, it should work fine, but one common exception found is: The type initializer for ‘Emgu.CV.CvInvoke’ threw an exception. If you see this exception, do the following:. For Version 2.4+, the bundled OpenCV binary is build with Visual Studio 2010, you will need to install or to resolve the dependency issue.
For Version 2.0+, the bundled OpenCV binary is built with Visual Studio 2008, you will need to install to resolve the dependency issue. For Version 1.5, the bundled OpenCV pre1.1 binary is build with Visual Studio 2005, you will need to install to resolve the dependency issue. This is the most effective solution to the problem for the above exception, for others and detailed troubleshooting,. Now start the configuration part:. We need to add an environment variable to the system variables.
Right click My Computer Advanced System SettingsEnvironment Variables Under “System Variables”, edit variable “path” Add a semicolon(;) and the path to the emgu installation directory bin folder (by default, it is C: Emgu emgucv-windows-x86 2.3.0.1416 bin. Now the environment is ready and we need to add the emgu custom controls to Visual Studio ToolBox In the toolbox, right click on General tab and select “choose items”. Select browse on bottom right corner and browse for “ Emgu.CV.UI.dll” (it is located in the bin folder of installation directory, i.e., C: Emgu emgucv-windows-x86 2.3.0.1416 bin). Now Visual Studio will have the tools for emgu control: This is all that is required for setting up the environment for working with Emgu CV. In the next article, we will learn how to create our first project with Emgu CV.