/*
ピクセルデータに総当たりしてるのでとても重い
動いた所が青くなります
*/

package{
	import flash.display.MovieClip;
	import flash.display.Bitmap;
	import flash.display.BitmapData;
	import flash.events.Event;
	import flash.media.Video;
	import flash.media.Camera;
	[SWF(width="320", height="240", backgroundColor="#000000", frameRate="24")]

public class Main extends MovieClip{

private var video:Video;
		
		private var bmpMC:MovieClip;
		private var bmp:Bitmap;
		private var bmpDat:BitmapData;
		private var bmpDat2:BitmapData;
		private var pxArray:Array;

public function Main(){
			
			
			var camera:Camera = Camera.getCamera();
			
			if ( camera != null ) {
				video = new Video( 320, 240 );
				video.attachCamera( camera );
				video.visible=false;
				
				
				bmpDat = new BitmapData(video.width, video.height);
				bmpDat2 = new BitmapData(video.width, video.height);
				bmp = new Bitmap( bmpDat2 );

bmpMC=new MovieClip();
				bmpMC.addChild( bmp );
				addChild(bmpMC);
				
				var lenJ:uint = video.height;
				var lenI:uint = video.width;
				
				pxArray = new Array(lenI);
				for(var i:uint = 0; i<=lenI; i++){
					pxArray[i] = new Array(lenJ);
					for(var j:uint = 0; j<=lenJ; j++){
						pxArray[i][j] = 0;
					}
				}
				
				addEventListener( Event.ENTER_FRAME , capVideo );
			}
		}
		
		
		private function capVideo( e:Event ):void{
			bmpDat.draw(video);
			
			var lenJ:uint = video.height;
			var lenI:uint = video.width;

for(var i:uint = 0; i<=lenI; i++){
				for(var j:uint = 0; j<=lenJ; j++){
					
					var color:uint = bmpDat.getPixel(i, j);
					var diff:uint = Math.abs(color - pxArray[i][j])/65535;
					
					bmpDat2.setPixel(i, j,  diff);

pxArray[i][j] = color;
				}
			}
			
		}
		
	}
}

（ニセ）輪郭線を青く