I am trying to do Face swap kind of application using facedetection. Till now i get the faces detected in bitmap and draw oval on the faces detected. But now i need to use the faces inside the oval so that i can swap two faces. Is it possible. I need some suggestions regarding this.
My activity class as follows
public class FaceDetectionActivity extends Activity
{
public MyView faceview;
public ImageView gallery;
private Uri imageURI;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
//setContentView(R.layout.main);
setContentView(R.layout.main);
faceview = (MyView)findViewById(R.id.faceview);
gallery=(ImageView)findViewById(R.id.gallery);
gallery.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
// TODO Auto-generated method stub
Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
intent.setType("image/*");
startActivityForResult(intent, 0 );
}
});
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (resultCode == Activity.RESULT_OK) {
if(requestCode==0){
imageURI = data.getData();
try {
Bitmap b = android.provider.MediaStore.Images.Media.getBitmap(getContentResolver(), imageURI);
faceview.myBitmap=b;
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
faceview.invalidate();
}
faceview.invalidate();
} else {
System.exit(0);
Log.e("result", "BAD");
}
}
}
and my view class
public class MyView extends ImageViewTouchBase {
public RectF rectF;
public Bitmap myBitmap;
private int width, height;
private FaceDetector.Face[] detectedFaces;
private int NUMBER_OF_FACES=10;
private FaceDetector faceDetector;
private int NUMBER_OF_FACE_DETECTED;
private float eyeDistance;
Matrix mImageMatrix;
public MyView(Context context, AttributeSet attrs)
{
super(context, attrs);
BitmapFactory.Options bitmapFatoryOptions=new BitmapFactory.Options();
bitmapFatoryOptions.inPreferredConfig=Bitmap.Config.RGB_565;
myBitmap=BitmapFactory.decodeResource(getResources(), R.drawable.familyportrait,bitmapFatoryOptions);
width=myBitmap.getWidth();
height=myBitmap.getHeight();
detectedFaces=new FaceDetector.Face[NUMBER_OF_FACES];
faceDetector=new FaceDetector(width,height,NUMBER_OF_FACES);
NUMBER_OF_FACE_DETECTED=faceDetector.findFaces(myBitmap, detectedFaces);
}
@Override
protected void onDraw(Canvas canvas)
{
if(myBitmap!=null)
{
canvas.drawBitmap(myBitmap, 0,0, null);
}
Paint myPaint = new Paint();
myPaint.setColor(Color.GREEN);
myPaint.setStyle(Paint.Style.STROKE);
myPaint.setStrokeWidth(3);
for(int count=0;count<NUMBER_OF_FACE_DETECTED;count++)
{
Face face=detectedFaces[count];
PointF midPoint=new PointF();
face.getMidPoint(midPoint);
eyeDistance=face.eyesDistance();
float left = midPoint.x - (float)(1.4 * eyeDistance);
float right = midPoint.x + (float)(1.4 * eyeDistance);
float top = midPoint.y - (float)(1.8 * eyeDistance);
float bottom = midPoint.y + (float)(1.8 * eyeDistance);
Rect imageRect = new Rect(0, 0, width, height);
rectF = new RectF();
rectF.set(left,top,right,bottom);
canvas.drawOval(rectF, myPaint);
}
}
}
Now i want the content inside the oval to be selected. Please suggest me some ideas.
I just figured it out. I am creating another bitmap with the variables Left,Right,Top and Bottom from the above code. and then i get a square bitmap of the faces.I am extracting circular bitmap from the square bitmap faces. Thats it.