Capturar imagem da WEBCAM

Achei um exemplo na internet para capturar imagem de uma WEBCAM.

WebCam.mxml

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" creationComplete="{this.startUp()}" >
 <mx:Script>
 <![CDATA[
  import mx.graphics.ImageSnapshot;
  public function startUp():void
  {
   var cam:Camera = Camera.getCamera();
   myVideo.attachCamera(cam);
  }
  public function onClickFoto():void
  {
   var imageBitmapData:BitmapData = ImageSnapshot.captureBitmapData(myVideo);
   myImage.source = new Bitmap(imageBitmapData);
  }
 ]]>
 </mx:Script>

 <mx:Button click="{this.onClickFoto()}" x="10" y="10" label="Foto"/>
 <mx:Box id="myTile" x="10" y="40" direction="horizontal">
  <mx:VideoDisplay id="myVideo" width="300" height="200"/>
  <mx:Image id="myImage" width="300" height="200"/>
 </mx:Box>
</mx:Application>

Exemplo com botão salvar :

<?xml version="1.0" encoding="utf-8"?> 
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" creationComplete="{this.startUp()}" > 
 <mx:Script> 
  <![CDATA[
   import mx.graphics.codec.JPEGEncoder;
   import mx.graphics.ImageSnapshot; 

   private var cam:Camera = Camera.getCamera();
   [Bindable]private var imageBitmapData:BitmapData;


   public function startUp():void
   {    
    myVideo.attachCamera(cam); 
   } 
   public function onClickFoto():void
   { 
    imageBitmapData = ImageSnapshot.captureBitmapData(myVideo); 
    myImage.source = new Bitmap(imageBitmapData);    
   } 

   public function SalvarImagem():void
   {
    var encoder:JPEGEncoder = new JPEGEncoder();
    var rawBytes:ByteArray = encoder.encode(imageBitmapData);
    new FileReference().save(rawBytes,"teste.jpg");
   }
  ]]> 
 </mx:Script> 

 <mx:Button click="{this.onClickFoto()}" x="10" y="10" label="Foto"/> 
 <mx:Button click="{SalvarImagem()}" x="70" y="10" label="Salvar"/>
 <mx:Box id="myTile" x="10" y="40" direction="horizontal"> 
  <mx:VideoDisplay id="myVideo" width="300" height="200"/> 
  <mx:Image id="myImage" width="300" height="200"/> 
 </mx:Box>
</mx:Application> 

Veja funcionando em outro endereço : http://files.riacodes.com/flash_capture-webcam/


Fonte : http://groups.google.com.br/group/flexdev/browse_thread/thread/99ad40c7e7b031/8ee3f06b2a802176?hl=pt-BR&lnk=gst&q=webcam#8ee3f06b2a802176