Capture and save images from Web camera using C# and ASP.NET Articles, samples and tutorials

Capture and save images from Web camera using C# and ASP.NET

Posted Date: 04-May-2010	Category: ASP.NET/Web Applications
Author: DAMU	Member Level: Gold	Points: 75

This C# code sample explains how to capture and save images or videos directly from your web camera. This web camera functionality is implemented using flash and C# and ASP.NET. Learn more about how to capture images from webcamera using .NET and save in to your computer.

In this article with some C# sample, I am going to explain how to capture and save image from web camera.

This web camera capturing and storing is implemented using flash on the front end and C# on the back end. You can easily embed this flash file into your web page and record images from the webcam.

Requirements to capture images from webcam using C#:

If you want to implement this functionality you need to install the latest flash player and have a working web camera.

Steps to capture webcam images using C# and ASP.NET:

1) Create a new web application project and copy the WebcamResources folder from the attachments.

2) Create a new page named "Default.aspx" page add the following code,


<object width="405" height="190"
  param name="movie" value="WebcamResources/save_picture.swf"
  embed src="WebcamResources/save_picture.swf" width="405" height="190" >
</object>

The above code is to place the flash object in your webpage, which is used to capture images from the webcam.

3) Create another ASP.NET web page and name it "ImageConversions.aspx"

This page name is should be of same name if you use the attached swf file. Whenever the capture image button is clicked, then it redirectd
to "ImageConversions.aspx" page. So the file name matters!

4) In this ASP.NET page, add the following C# code in the pageload or create a
separate method.


string strPhoto = Request.Form["imageData"]; //Get the image from flash file
byte[] photo = Convert.FromBase64String(strPhoto);
FileStream fs = new FileStream("C:\\Webcam.jpg", FileMode.OpenOrCreate, FileAccess.Write);
BinaryWriter br = new BinaryWriter(fs);
br.Write(photo);
br.Flush();
br.Close();
fs.Close();

Above example written in C# will convert the byte code into image and store the image in local C: drive. Even though the code sample is given in C#, if you are a VB.NET guy, you can easily convert this to VB.NET and write your web cam application in VB.NET.

See the attached application which can be used to save images from the webcam. Download the files and add to your Visual Studio project and start capturing pictures from your webcam.

Do you have any questions or suggestions to this web application to capture images from web camera? Feel free to post your comments below and I will be more than happy to respond to your questions.

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