/* 直前のフレームと比較して色の変化している部分を抜き出す。 両方のフレームをgetPixelして比較している。 Filter類を使うのもいいんだけど、 「早すぎる最適化」でなにをやっているかわからなくなるのも嫌なので、 基本から。 */ package { import flash.display.Sprite; import flash.display.StageAlign; import flash.display.StageScaleMode; import flash.events.*; import flash.media.Camera; import flash.media.Video; import flash.utils.Timer; public class CameraEx extends Sprite { private var video:Video; private var btn:Sprite; private var _bitmapProcess:BitmapProcess; public function CameraEx() { stage.scaleMode = StageScaleMode.NO_SCALE; stage.align = StageAlign.TOP_LEFT; // camera var camera:Camera = Camera.getCamera(); if (camera != null) { video = new Video(160, 120); video.attachCamera(camera); addChild(video); } else { trace("You need a camera."); } _bitmapProcess = new BitmapProcess(); _bitmapProcess.x = 160; this.addChild(_bitmapProcess); // button btn = new Sprite(); btn.buttonMode = true btn.graphics.beginFill(0x333333); btn.graphics.drawRect(0,0,100,30); btn.y = 120 + 10; addChild(btn); btn.addEventListener(MouseEvent.MOUSE_UP, btnUp); var timer:Timer = new Timer(100,9999); timer.addEventListener(TimerEvent.TIMER,onTime); timer.start(); } private function onTime(e:TimerEvent):void { _bitmapProcess.setBitmap(video); } private function btnUp(e:MouseEvent):void { _bitmapProcess.setBitmap(video); } } } import flash.display.Bitmap; import flash.display.BitmapData; import flash.display.Sprite; import flash.filters.BitmapFilter; import flash.filters.BlurFilter; import flash.filters.ColorMatrixFilter; import flash.filters.ConvolutionFilter; import flash.geom.ColorTransform; import flash.geom.Point; import flash.geom.Rectangle; import flash.media.Video; class BitmapProcess extends Sprite{ private var _bitmap0:Bitmap; private var _bitmap1:Bitmap; private var _bitmap2:Bitmap; private var _bitmapData0:BitmapData; private var _bitmapData1:BitmapData; private var _bitmapData2:BitmapData; private var _tempBitmapData:BitmapData; public function BitmapProcess(){ _bitmapData0 = new BitmapData(160,120,false,0x000000); _bitmap0 = new Bitmap(_bitmapData0); _bitmap0.scaleX = _bitmap0.scaleY = 2; this.addChild(_bitmap0); _bitmapData1 = new BitmapData(160,120,false,0x000000); _bitmap1 = new Bitmap(_bitmapData1); _bitmap1.scaleX = _bitmap1.scaleY = 2; _bitmap1.y = 240; this.addChild(_bitmap1); _bitmapData2 = new BitmapData(160,120,false,0x000000); _bitmap2 = new Bitmap(_bitmapData2); _bitmap2.scaleX = _bitmap2.scaleY = 2; _bitmap2.y = 500; this.addChild(_bitmap2); _tempBitmapData = new BitmapData(160,120,false,0x000000); } public function setBitmap(video:Video):void{ // _bitmapData0.draw(video); // _bitmapData0 = outline(_bitmapData0); _bitmap0.bitmapData = _bitmap2.bitmapData.clone(); //_bitmap2.bitmapData.colorTransform(new Rectangle(0,0,160,120),new ColorTransform(0.5,0.5,0.5,1,0,0,0,0)); _tempBitmapData.draw(video); _bitmap2.bitmapData = _tempBitmapData.clone(); //_bitmap2.bitmapData.colorTransform(new Rectangle(0,0,160,120),new ColorTransform(0.1,0.1,0.1,1)); _bitmap2.bitmapData.applyFilter(_bitmap2.bitmapData,_bitmap2.bitmapData.rect,new Point(0,0),new BlurFilter(2,2)); _bitmap2.bitmapData = posterization(_bitmap2.bitmapData); //_bitmap2.bitmapData = outline(_tempBitmapData); _bitmap1.bitmapData = _bitmap2.bitmapData.clone(); // _bitmap0.bitmapData.draw(_bitmap1,null,null,"difference"); //trace(_bitmap2.bitmapData.getPixel(79,59)); _bitmap1.bitmapData.lock(); _bitmap1.bitmapData.fillRect(new Rectangle(0,0,160,120),0xFF); var n:int = _bitmapData0.height; var m:int = _bitmapData0.width; //var poz:Array = []; for (var i:int = 0; i < n; i++) { for (var j:int = 0; j < m; j++) { if(near(_bitmap0.bitmapData.getPixel(j,i),_bitmap2.bitmapData.getPixel(j,i),8)){ //poz.push([j,i]); _bitmap1.bitmapData.setPixel(j,i,_tempBitmapData.getPixel(j,i)); //_bitmap1.bitmapData.setPixel(j,i,0xFF0000); } } } _bitmap1.bitmapData.unlock(); //trace(poz[Math.floor(poz.length/2)]); } private function near(a:uint,b:uint,d:int):Boolean { return (a != b); } private function outline(bd:BitmapData):BitmapData { var matrix:Array = [ -30, 30, 0, -30, 30, 0, -30, 30, 0]; var filter:BitmapFilter = new ConvolutionFilter(3,3, matrix, 9); var filters:Array = []; bd.applyFilter(bd,bd.rect, new Point(0, 0), filter) return bd; } public function posterization(bitmapData:BitmapData):BitmapData{ var n:int = bitmapData.height; var m:int = bitmapData.width; for (var i:int = 0; i < n; i++) { for (var j:int = 0; j < m; j++) { var rgb:uint = bitmapData.getPixel(j,i); var r:int = rgb >> 16 & 0xFF; var g:int = rgb >> 8 & 0xFF; var b:int = rgb & 0xFF; r = Math.floor(r/64)*64; g = Math.floor(g/64)*64; b = Math.floor(b/64)*64; bitmapData.setPixel(j,i,r*256*256+g*256+b); } } return bitmapData; } public function getGray(rgb:uint):int{ var r:int = rgb >> 16 & 0xFF; var g:int = rgb >> 8 & 0xFF; var b:int = rgb & 0xFF; return (r+g+b)/3; } }