ActionScript3.0 でカメラの赤色を検出
これを参考にAS3でやってみた。
hatayanlog: Flash ActionScript WEBCAMを使った 赤色の検出
http://www.hatayan.org/weblog/archives/2005/11/30/123132.php
ActionScript3.0 ColorTracking 赤色の検出
http://labs.un-q.net/as3/camera/colorTracking/01/
package {
import flash.display.*;
import flash.events.*;
import flash.geom.*;
import flash.media.Camera;
import flash.media.Video;
public class ColorTracking01 extends Sprite {
private var camera:Camera;
private var video:Video;
private var srcbd:BitmapData;
private var viewbd:BitmapData;
private var greenbd:BitmapData;
private var bluebd:BitmapData;
private var mt:Matrix;
private var mirrorMt:Matrix;
private var pt:Point;
private var rect:Rectangle;
private var ct:ColorTransform;
public function ColorTracking01() {
init();
}
private function init():void {
stage.scaleMode = StageScaleMode.NO_SCALE;
stage.align = StageAlign.TOP_LEFT;
camera = Camera.getCamera();
if (camera != null) {
setupCamera();
} else {
trace("not camera");
return;
}
srcbd = new BitmapData(camera.width*2, camera.height*2 ,false,0xffffff);
viewbd = new BitmapData(camera.width*2, camera.height*2);
greenbd = new BitmapData(camera.width*2, camera.height*2);
bluebd = new BitmapData(camera.width*2, camera.height*2);
mirrorMt = new Matrix();
mirrorMt.scale(-1, 1);
mirrorMt.translate(camera.width*2,0);
pt = new Point(0,0);
rect = new Rectangle(0,0,camera.width*2, camera.height*2);
ct = new ColorTransform();
mt = new Matrix();
addChild(new Bitmap(srcbd));
var v:DisplayObject = addChild(new Bitmap(viewbd));
v.x = camera.width*2 + 10;
addEventListener(Event.ENTER_FRAME, loop);
}
private function setupCamera():void {
video = new Video(camera.width*2, camera.height*2);
video.attachCamera(camera);
}
private function loop(e:Event):void {
srcbd.lock();
viewbd.lock();
greenbd.lock();
bluebd.lock();
srcbd.draw(video,mirrorMt);
viewbd.draw(video,mirrorMt);
greenbd.copyChannel(srcbd, rect, pt, BitmapDataChannel.GREEN, BitmapDataChannel.RED);
bluebd.copyChannel(srcbd, rect, pt, BitmapDataChannel.BLUE, BitmapDataChannel.RED);
bluebd.draw(greenbd, mt, ct, BlendMode.LIGHTEN);
viewbd.draw(bluebd, mt,ct, BlendMode.SUBTRACT);
viewbd.threshold(viewbd, rect, pt, ">", 0xff600000, 0xffffffff);
viewbd.threshold(viewbd, rect, pt, "!=", 0xffffffff, 0xff000000);
srcbd.unlock();
viewbd.unlock();
greenbd.unlock();
bluebd.unlock();
}
}
}
