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Java Source | 2002-09-06 | 10.0 KB | 261 lines |
- /*
- * Copyright (c) 2002 Sun Microsystems, Inc. All Rights Reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * -Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * -Redistribution in binary form must reproduct the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the distribution.
- *
- * Neither the name of Sun Microsystems, Inc. or the names of contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * 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 OR LIABILITIES SUFFERED BY LICENSEE AS A RESULT
- * OF OR RELATING TO USE, MODIFICATION OR DISTRIBUTION OF 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.
- *
- * You acknowledge that Software is not designed, licensed or intended for
- * use in the design, construction, operation or maintenance of any nuclear
- * facility.
- */
-
- /*
- * @(#)ImageOps.java 1.28 02/06/13
- */
-
- package java2d.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 java2d.ControlsSurface;
- import java2d.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
-