/*
* @(#)ImageOps.java 1.24 99/09/07
*
* Copyright (c) 1998, 1999 by Sun Microsystems, Inc. All Rights Reserved.
*
* Sun grants you ("Licensee") a non-exclusive, royalty free, license to use,
* modify and redistribute this software in source and binary code form,
* provided that i) this copyright notice and license appear on all copies of
* the software; and ii) Licensee does not utilize the software in a manner
* which is disparaging to Sun.
*
* This software is provided "AS IS," without a warranty of any kind. ALL
* EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING ANY
* IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR
* NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN AND ITS LICENSORS SHALL NOT BE
* LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING
* OR DISTRIBUTING THE SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR ITS
* LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT,
* INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER
* CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF
* OR INABILITY TO USE SOFTWARE, EVEN IF SUN HAS BEEN ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES.
*
* This software is not designed or intended for use in on-line control of
* aircraft, air traffic, aircraft navigation or aircraft communications; or in
* the design, construction, operation or maintenance of any nuclear
* facility. Licensee represents and warrants that it will not use or
* redistribute the Software for such purposes.
*/
package demos.Images;
import java.awt.*;
import java.awt.image.*;
import java.awt.event.*;
import java.awt.geom.AffineTransform;
import javax.swing.*;
import javax.swing.event.*;
import ControlsSurface;
import CustomControls;
/**
* Images drawn using operators such as ConvolveOp LowPass & Sharpen,
* LookupOp and RescaleOp.
*/
public class ImageOps extends ControlsSurface implements ChangeListener {
protected JSlider slider1, slider2;
private static String imgName[] = { "bld.jpg", "boat.png" };
private static BufferedImage img[] = new BufferedImage[imgName.length];
private static String opsName[] = {
"Threshold", "RescaleOp" ,"Invert", "Yellow Invert", "3x3 Blur",
"3x3 Sharpen", "3x3 Edge", "5x5 Edge"};
private static BufferedImageOp biop[] = new BufferedImageOp[opsName.length];
private static int rescaleFactor = 128;
private static float rescaleOffset = 0;
private static int low = 100, high = 200;
private int opsIndex, imgIndex;
static {
thresholdOp(low, high);
int i = 1;
biop[i++] = new RescaleOp(1.0f, 0, null);
byte invert[] = new byte[256];
byte ordered[] = new byte[256];
for (int j = 0; j < 256 ; j++) {
invert[j] = (byte) (256-j);
ordered[j] = (byte) j;
}
biop[i++] = new LookupOp(new ByteLookupTable(0,invert), null);
byte[][] yellowInvert = new byte[][] { invert, invert, ordered };
biop[i++] = new LookupOp(new ByteLookupTable(0,yellowInvert), null);
int dim[][] = {{3,3}, {3,3}, {3,3}, {5,5}};
float data[][] = { {0.1f, 0.1f, 0.1f, // 3x3 blur
0.1f, 0.2f, 0.1f,
0.1f, 0.1f, 0.1f},
{-1.0f, -1.0f, -1.0f, // 3x3 sharpen
-1.0f, 9.0f, -1.0f,
-1.0f, -1.0f, -1.0f},
{ 0.f, -1.f, 0.f, // 3x3 edge
-1.f, 5.f, -1.f,
0.f, -1.f, 0.f},
{-1.0f, -1.0f, -1.0f, -1.0f, -1.0f, // 5x5 edge
-1.0f, -1.0f, -1.0f, -1.0f, -1.0f,
-1.0f, -1.0f, 24.0f, -1.0f, -1.0f,
-1.0f, -1.0f, -1.0f, -1.0f, -1.0f,
-1.0f, -1.0f, -1.0f, -1.0f, -1.0f}};
for (int j = 0; j < data.length; j++, i++) {
biop[i] = new ConvolveOp(new Kernel(dim[j][0],dim[j][1],data[j]));
}
}
public ImageOps() {
setBackground(Color.white);
for (int i = 0; i < imgName.length; i++) {
Image image = getImage(imgName[i]);
int iw = image.getWidth(this);
int ih = image.getHeight(this);
img[i] = new BufferedImage(iw, ih, BufferedImage.TYPE_INT_RGB);
img[i].createGraphics().drawImage(image,0,0,null);
}
slider1 = new JSlider(JSlider.VERTICAL, 0, 255, low);
slider1.setPreferredSize(new Dimension(15, 100));
slider1.addChangeListener(this);
slider2 = new JSlider(JSlider.VERTICAL, 0, 255, high);
slider2.setPreferredSize(new Dimension(15, 100));
slider2.addChangeListener(this);
setControls(new Component[]{new DemoControls(this),slider1,slider2});
setConstraints(new String[] {
BorderLayout.NORTH, BorderLayout.WEST, BorderLayout.EAST });
}
public static void thresholdOp(int low, int high) {
byte threshold[] = new byte[256];
for (int j = 0; j < 256 ; j++) {
if (j > high) {
threshold[j] = (byte) 255;
} else if (j < low) {
threshold[j] = (byte) 0;
} else {
threshold[j] = (byte) j;
}
}
biop[0] = new LookupOp(new ByteLookupTable(0,threshold), null);
}
public void render(int w, int h, Graphics2D g2) {
int iw = img[imgIndex].getWidth(null);
int ih = img[imgIndex].getHeight(null);
BufferedImage bi = new BufferedImage(iw,ih,BufferedImage.TYPE_INT_RGB);
biop[opsIndex].filter(img[imgIndex], bi);
g2.drawImage(bi,0,0,w,h,null);
}
public void stateChanged(ChangeEvent e) {
// when using these sliders use double buffering, which means
// ignoring when DemoSurface.imageType = 'On Screen'
if (getImageType() <= 1) {
setImageType(2);
}
if (e.getSource().equals(slider1)) {
if (opsIndex == 0) {
thresholdOp(slider1.getValue(), high);
} else {
rescaleFactor = slider1.getValue();
biop[1] = new RescaleOp((float)rescaleFactor/128.0f, rescaleOffset, null);
}
} else {
if (opsIndex == 0) {
thresholdOp(low, slider2.getValue());
} else {
rescaleOffset = (float) slider2.getValue();
biop[1] = new RescaleOp((float)rescaleFactor/128.0f, rescaleOffset, null);
}
}
repaint();
}
public static void main(String s[]) {
createDemoFrame(new ImageOps());
}
static class DemoControls extends CustomControls implements ActionListener {
ImageOps demo;
JComboBox imgCombo, opsCombo;
Font font = new Font("serif", Font.PLAIN, 10);
public DemoControls(ImageOps demo) {
super(demo.name);
this.demo = demo;
setBackground(Color.gray);
add(imgCombo = new JComboBox());
imgCombo.setFont(font);
for (int i = 0; i < ImageOps.imgName.length; i++) {
imgCombo.addItem(ImageOps.imgName[i]);
}
imgCombo.addActionListener(this);
add(opsCombo = new JComboBox());
opsCombo.setFont(font);
for (int i = 0; i < ImageOps.opsName.length; i++) {
opsCombo.addItem(ImageOps.opsName[i]);
}
opsCombo.addActionListener(this);
}
public void actionPerformed(ActionEvent e) {
if (e.getSource().equals(opsCombo)) {
demo.opsIndex = opsCombo.getSelectedIndex();
if (demo.opsIndex == 0) {
demo.slider1.setValue(demo.low);
demo.slider2.setValue(demo.high);
demo.slider1.setEnabled(true);
demo.slider2.setEnabled(true);
} else if (demo.opsIndex == 1) {
demo.slider1.setValue(demo.rescaleFactor);
demo.slider2.setValue((int) demo.rescaleOffset);
demo.slider1.setEnabled(true);
demo.slider2.setEnabled(true);
} else {
demo.slider1.setEnabled(false);
demo.slider2.setEnabled(false);
}
} else if (e.getSource().equals(imgCombo)) {
demo.imgIndex = imgCombo.getSelectedIndex();
}
demo.repaint(10);
}
public Dimension getPreferredSize() {
return new Dimension(200,32);
}
public void run() {
try { thread.sleep(1111); } catch (Exception e) { return; }
Thread me = Thread.currentThread();
while (thread == me) {
for (int i = 0; i < ImageOps.imgName.length; i++) {
imgCombo.setSelectedIndex(i);
for (int j = 0; j < ImageOps.opsName.length; j++) {
opsCombo.setSelectedIndex(j);
if (j <= 1) {
for (int k = 50; k <= 200; k+=10) {
demo.slider1.setValue(k);
try {
thread.sleep(200);
} catch (InterruptedException e) { return; }
}
}
try {
thread.sleep(4444);
} catch (InterruptedException e) { return; }
}
}
}
thread = null;
}
} // End DemoControls
} // End ImageOps
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