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package
{
import flash.display.Sprite;
import flash.display.Loader;
import flash.display.Bitmap;
import flash.display.BitmapData;
import flash.events.*;
import flash.net.*;
import flash.geom.Rectangle;
public class Main extends Sprite
{
private var loader:Loader;
private var url:String="3.jpg";
public function Main()
{
init();
}
//³õʼ»¯
private function init():void
{
loader=new Loader();//Íⲿ¼ÓÔØÒ»ÕÅͼƬ
loader.load(new URLRequest(url));
loader.contentLoaderInfo.addEventListener(Event.COMPLETE,onComplete);
}
private function onComplete(event:Event):void
{

var Width:Number=loader.content.width;
var Height:Number=loader.content.height;
addChild(new Bitmap(Bitmap(loader.content).bitmapData));

var bmpData:BitmapData=new BitmapData(Width,Height,false,0xffffff);//н¨Ò»¸ö¿Õ°×µÄλͼÊý¾Ý
bmpData.draw(loader);//»ñȡӰÏñ
//½øÐÐÏñËØ»ñÈ¡£¬ÖØ×éÏñËØ
for (var i:int=0; i<Width; i++)
{
for (var j:int=0; j<Height; j++)
{
var color:uint=bmpData.getPixel(i,j);
if(color>0x3fffff)
bmpData.setPixel(i,j,0xffffff);//ÉèÖð×É«
else bmpData.setPixel(i,j,0x000000);//ÉèÖúÚÉ«
}
}
//ÏÔʾµ½Áбí²Ëµ¥
var bitmap:Bitmap=new Bitmap(bmpData);
bitmap.x=Width;
addChild(bitmap);

}
}
}


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