I have a question....
If I have a buffered image. I apply some changes to the image, such as smoothen
the image. How can I display the new image. Here is a snippet of my source
code. Because everytime I apply the the new image. The only thing is see is my
original image. What are the few things to keep in mind to update an
image(i.e.)after using setrgb()
[code]
class MyPanel extends JPanel
{
//Purpose: a panel in which to draw
//global offscreen and the Graphics2D variable g2
private BufferedImage bufImag;
protected Graphics2D g2;
private int x,y;
final int offScrWidth=1500,offScrHeight=1500;
public MyPanel()
{
bufImag = new
BufferedImage(offScrWidth,offScrHeight,BufferedImage.TYPE_INT_RGB);
try
{
InputStream in = new FileInputStream("Skull.JPG");
bufImag = ImageIO.read(in);
}
catch (IOException ex) {}
g2 = bufImag.createGraphics();
setPreferredSize(new Dimension(offScrWidth,offScrHeight));
g2.drawImage(bufImag, 0,0,null);
}
public void smoothme ()
{
int sum=0;
int width=bufImag.getWidth();
int height=bufImag.getHeight();
int[][] pixels = new int[width][height];
int I,J,i,j;
for (J=0;J<height;J++)
{
for (I=0;I<width;I++)
{
pixels[I][J] =
(bufImag.getRGB(I,J)& 0x000000ff);
}
}
bufImag = new
BufferedImage(offScrWidth,offScrHeight,BufferedImage.TYPE_INT_RGB);
//set of codes for processing the image
for (J=0;J<width;J++)
{
for (I=0;I<height;I++)
{
bufImag.setRGB(I,J,((pixels[I][J]<<8)+pixels[I][J]<<8)+pixels[I][J]);
}
}
g2.drawImage(bufImag, 0,0,null);
repaint();
}
public void paintComponent(Graphics g)
{
//Purpose: do a complete screen refresh here
//Input: a Graphics to draw on
//Output: changes to the Graphics
super.paintComponent(g);
Graphics2D g2 = (Graphics2D)g;//copy offscreen to screen
g2.drawImage(bufImag, null,0,0);
}
}
class smooth{
// Main class
public static void main(String[] args){
MyPanel myPanel=new MyPanel();
MyFrame myFrame=new MyFrame(myPanel);
System.out.println("\n\nEnd of Processing");
}
}
[/code]
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