android 脸部抠图

原帖：
http://www.eoeandroid.com/thread-205445-1-1.html
package com.face;import android.app.Activity;import android.content.Context;import android.graphics.Bitmap;import android.graphics.BitmapFactory;import android.graphics.Canvas;import android.graphics.Color;import android.graphics.Paint;import android.graphics.PointF;import android.media.FaceDetector;import android.media.FaceDetector.Face;import android.os.Bundle;import android.view.View; public class MainActivity extends Activity {    /** Called when the activity is first created. */    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(new myView(this));    }     private class myView extends View{         private int imageWidth, imageHeight;        private int numberOfFace = 5;        private FaceDetector myFaceDetect;        private FaceDetector.Face[] myFace;        float myEyesDistance;        int numberOfFaceDetected;         Bitmap myBitmap;         public myView(Context context) {            super(context);            BitmapFactory.Options BitmapFactoryOptionsbfo = new BitmapFactory.Options();            BitmapFactoryOptionsbfo.inPreferredConfig = Bitmap.Config.RGB_565;            myBitmap = BitmapFactory.decodeResource(getResources(), R.drawable.p1, BitmapFactoryOptionsbfo);            imageWidth = myBitmap.getWidth();            imageHeight = myBitmap.getHeight();            myFace = new FaceDetector.Face[numberOfFace];            myFaceDetect = new FaceDetector(imageWidth, imageHeight, numberOfFace);            numberOfFaceDetected = myFaceDetect.findFaces(myBitmap, myFace);        }         protected void onDraw(Canvas canvas) {            // TODO Auto-generated method stub             canvas.drawBitmap(myBitmap, 0, 0, null);             Paint myPaint = new Paint();            myPaint.setColor(Color.GREEN);            myPaint.setStyle(Paint.Style.STROKE);            myPaint.setStrokeWidth(3);             for(int i=0; i < numberOfFaceDetected; i++)            {                Face face = myFace[i];                PointF myMidPoint = new PointF();                face.getMidPoint(myMidPoint);                myEyesDistance = face.eyesDistance();                canvas.drawRect(                        (int)(myMidPoint.x - myEyesDistance*2),                        (int)(myMidPoint.y - myEyesDistance*2),                        (int)(myMidPoint.x + myEyesDistance*2),                        (int)(myMidPoint.y + myEyesDistance*2),                        myPaint);            }        }    }}
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