Use Android Phone as Webcam and Surveillance Camera - CodeProject

Codeproject that tells how to use android phone as a webcam and surveillance. 

Use Android Phone as Webcam and Surveillance Camera - CodeProject

Mouse Control via Webcam - CodeProject

Ever wanted to use your mouse on your PC with hand gestures? Some students have figured out how to do that without using Kinect but with just the webcam!

This application uses emguCV, a .NET wrapper for openCV, to perform image processing, through which we try to recognize hand gestures and control mouse using these gestures. In this app, cursor movement is controlled by the movement of hand and click events are triggered using hand gestures.

 
Mouse Control via Webcam - CodeProject

Webcam and Annotation With HTML5 - CodeProject

English: Grayscale image of a Microsoft LifeCam VX-3000 webcam attached to a display. (Photo credit: Wikipedia)

Introduction to article

Nowadays, Webcam is widely used for both personal and business. It is simple, cheap, and yet powerful for image acquisition.
Some developers prefer to create their own webcam libraries. In this case, you need to learn technologies like TWAIN, WIA and/or DirectShow.
Note: the WIA and DirectShow APIs are recommended to develop a webcam SDK. TWAIN, however, is a good option for scanners.
However, due to the complexity of learning the APIs, as well as the technologies such as COM interfaces, it’s not an easy task for developers to create and embed Webcam SDK into their web applications. There are two options to simplify the whole process:

• Use a third-party plug-in/add-on to access and control the webcams, such as Flash, Silverlight, etc.
• Adopt the new technology – HTML5.

I will talk more about the second option in this article.
Webcam devices will be supported by the new video element and the getUserMedia API in HTML5. This means we can capture video streams and images from Webcam devices with just a few lines of JavaScript and HTML code, and the end users do not need to install anything for the browsers.

Webcam and Annotation With HTML5 - CodeProject

WPF: Webcam Control - CodeProject®

Introduction to article by  Meshack Musundi

I have on several occasions scoured the net for a simple to use WPF webcam control and either my search queries were awful or I just wasn't comfortable with whatever I found. This webcam interest was recently increased when I read an article, here on CodeProject, that referred to an application that made use of a webcam. It was a Silverlight article and the ease with which one could utilize a webcam in Silverlight made me envious of WPF's little brother (or is it sister?). The VideoBrush in Silverlight is especially a nice touch.
It is with this pain and envy in mind that I decided to try my hand at creating a WPF control that could;

1. Display webcam video with little coding effort
2. Allow saving of webcam video to harddisk, with little coding effort
3. Save the webcam video in a variety of video formats

WPF: Webcam Control - CodeProject®

Realtime Webcam Sudoku Solver - CodeProject

Introduction to Article

This application might not have any practical value, but it is great from a learning perspective. I wanted to learn about computer vision. Computer vision is one of the most exciting areas of modern computing. It is also a difficult area. What is simple and obvious for the human brain is very difficult for a computer. Many things are still impossible with the current level of IT progress.
This application is implemented using low level C++ because I wanted to learn how things work under the hood. If you’d like to start with a computer vision application, you should take an existing library (like OpenCV) and start from there. You can find several tutorials here on CodeProject. The webcam image gathering source code is from from Vadim Gorbatenko (AviCap CodeProject).
The webcam acquires one image at a time (a frame). The flow of frames gives the impression of motion. The next image explains what this application does within a webcam frame.

Realtime Webcam Sudoku Solver - CodeProject

How to use a WebCam in C# with the .NET Framework 4.0 and Microsoft Expression Encoder 4 - CodeProject

Introduction to article

If you are interested in using your webcam from C# in an easy way, this little article is for you. In order to achieve our goal, we need the Microsoft .NET 4.0 and Microsoft Expression Encoder 4. You can get the latter for FREE, using the 'Microsoft Web Platform Installer', that can be downloaded from here: http://www.microsoft.com/web/downloads/platform.aspx

How to use a WebCam in C# with the .NET Framework 4.0 and Microsoft Expression Encoder 4 - CodeProject

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