make Noise on Image

Tue Nov 11, 2008 5:43 pm

make Noise on Image in java

Code:: import java.awt.*; import java.awt.event.*; import java.awt.image.*; import java.util.Random; import javax.swing.*; public class NoiseImage extends JComponent implements Runnable { byte[] b; BufferedImage bufferedImage; Random ran; public void init() { int wid = getSize().width, ht = getSize().height; int length = ((wid + 5) * ht) / 7; b = new byte[length]; DataBuffer dataBuffer = new DataBufferByte(b, length); WritableRaster raster = Raster.createPackedRaster(dataBuffer, wid, ht, 1, null); ColorModel colorModel = new IndexColorModel(1, 2, new byte[] { (byte) 0, (byte) 250} , new byte[] {(byte) 0, (byte) 250 }, new byte[] { (byte) 0, (byte) 250 }); bufferedImage = new BufferedImage(colorModel, raster, false, null); ran = new Random(); new Thread(this).start(); } public void run() { while (true) { ran.nextBytes(b); repaint(); try { Thread.sleep(80); } catch (Exception e) { } } } public void paint(Graphics graphics) { if (bufferedImage == null) init(); graphics.drawImage(bufferedImage, 0, 0, this); } public static void main(String[] args) { JFrame frame = new JFrame(); frame.add(new NoiseImage()); frame.setSize(250, 250); frame.setVisible(true); } }

Attachments

: Image will be displayed as:; noiseImage.gif (8.99 KiB) Viewed 7516 times