drawing on a Grapics or BufferedImage - still unclear on the concept

I'm trying to implement a red-eye removal feature, and to do so, I need to apply a Graphics2D filter to the contents of a Shape. Here's what I'm doing

private Image image;// this is the image being draw on the JLabel via ImageIcon

...

publicvoid paintComponent( Graphics g ){

super.paintComponent( g );

Graphics2D g2 = (Graphics2D)g;

Stack<Rectangle> redeyes = Pick.peek().getRedeye();

// apply RedEye fix to this Stack of "circles"

for(int i=0;i<redeyes.size();i++){

Rectangle r = redeyes.elementAt(i);

Ellipse2D.Float circle =new Ellipse2D.Float(r.x, r.y, r.width, r.height);

applyFilter2Shape(g2, (Shape)circle );

}

}

publicvoid applyFilter2Shape(Graphics2D g2, Shape s){

// this works, I can draw a red circle just fine

//g2.setColor(Color.RED);

//g2.draw( s );

//g2.setColor(Color.WHITE); // Should be drawing TRANSPARENT on a black RGB as an alpha composite

//g2.fill( s );

LookupTable lookup_table =newshort[256];

// assume there is a filter here

LookupOp lookup_op =new LookupOp (lookup_table,null);

lookup_op =new LookupFilterOp();

g2.setClip(s);

// write g2.clip into a new buffered image and filter

BufferedImage clipBI =new BufferedImage (s.getBounds().width, s.getBounds().height, BufferedImage.TYPE_INT_RGB);

g2.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC );

g2.drawImage(clipBI, 0, 0, s.getBounds().width, s.getBounds().height,null);

clipBI = lookup_op.filter (clipBI,null);

// draw clipBI onto g2

Graphics2D g2clip = clipBI.createGraphics();

g2clip.setClip(s);

// I know I'll draw the filtered image in the top left corner, but that's good enough for now

g2clip.drawImage((BufferedImage)image, 0, 0, s.getBounds().width, s.getBounds().height,null);

}

But nothing happens. What am I doing wrong? Is there a better way to do this?>

[3108 byte] By [mixersofta] at [2007-11-27 6:31:54]