package{ import flash.display.*; import flash.events.*; import flash.media.*; import flash.system.*; import flash.text.*; import flash.geom.*; import flash.filters.*; [SWF(width="640", height="480")] public class Threshold extends Sprite { private var video:Video; private var camera:Camera; private var msg:String; public var txtArea:TextField = new TextField(); public var bdTmp:BitmapData; public