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278 lines
10 KiB
Java
278 lines
10 KiB
Java
/*
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*
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* Copyright (c) 2007, 2018, Oracle and/or its affiliates. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* - Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* - Neither the name of Oracle nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
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* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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package java2d.demos.Images;
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import java.awt.BorderLayout;
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import java.awt.Color;
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import java.awt.Component;
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import java.awt.Dimension;
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import java.awt.Font;
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import java.awt.Graphics2D;
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import java.awt.Image;
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import java.awt.event.ActionEvent;
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import java.awt.event.ActionListener;
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import java.awt.geom.AffineTransform;
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import java.awt.image.BufferedImage;
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import java.awt.image.BufferedImageOp;
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import java.awt.image.ByteLookupTable;
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import java.awt.image.ConvolveOp;
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import java.awt.image.Kernel;
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import java.awt.image.LookupOp;
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import java.awt.image.RescaleOp;
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import java2d.ControlsSurface;
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import java2d.CustomControls;
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import javax.swing.JComboBox;
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import javax.swing.JSlider;
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import javax.swing.SwingConstants;
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import javax.swing.event.ChangeEvent;
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import javax.swing.event.ChangeListener;
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/**
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* Images drawn using operators such as ConvolveOp LowPass & Sharpen,
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* LookupOp and RescaleOp.
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*/
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@SuppressWarnings("serial")
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public class ImageOps extends ControlsSurface implements ChangeListener {
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protected JSlider slider1, slider2;
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private static final String[] imgName = { "bld.jpg", "boat.png" };
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private static final BufferedImage[] img = new BufferedImage[imgName.length];
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private static final String[] opsName = {
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"Threshold", "RescaleOp", "Invert", "Yellow Invert", "3x3 Blur",
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"3x3 Sharpen", "3x3 Edge", "5x5 Edge" };
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private static final BufferedImageOp[] biop =
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new BufferedImageOp[opsName.length];
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private static int rescaleFactor = 128;
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private static float rescaleOffset = 0;
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private static final int low = 100, high = 200;
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private int opsIndex, imgIndex;
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static {
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thresholdOp(low, high);
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int i = 1;
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biop[i++] = new RescaleOp(1.0f, 0, null);
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byte[] invert = new byte[256];
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byte[] ordered = new byte[256];
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for (int j = 0; j < 256; j++) {
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invert[j] = (byte) (256 - j);
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ordered[j] = (byte) j;
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}
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biop[i++] = new LookupOp(new ByteLookupTable(0, invert), null);
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byte[][] yellowInvert = new byte[][] { invert, invert, ordered };
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biop[i++] = new LookupOp(new ByteLookupTable(0, yellowInvert), null);
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int[][] dim = { { 3, 3 }, { 3, 3 }, { 3, 3 }, { 5, 5 } };
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float[][] data = { { 0.1f, 0.1f, 0.1f, // 3x3 blur
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0.1f, 0.2f, 0.1f,
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0.1f, 0.1f, 0.1f },
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{ -1.0f, -1.0f, -1.0f, // 3x3 sharpen
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-1.0f, 9.0f, -1.0f,
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-1.0f, -1.0f, -1.0f },
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{ 0.f, -1.f, 0.f, // 3x3 edge
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-1.f, 5.f, -1.f,
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0.f, -1.f, 0.f },
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{ -1.0f, -1.0f, -1.0f, -1.0f, -1.0f, // 5x5 edge
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-1.0f, -1.0f, -1.0f, -1.0f, -1.0f,
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-1.0f, -1.0f, 24.0f, -1.0f, -1.0f,
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-1.0f, -1.0f, -1.0f, -1.0f, -1.0f,
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-1.0f, -1.0f, -1.0f, -1.0f, -1.0f } };
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for (int j = 0; j < data.length; j++, i++) {
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biop[i] = new ConvolveOp(new Kernel(dim[j][0], dim[j][1], data[j]));
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}
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}
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@SuppressWarnings("LeakingThisInConstructor")
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public ImageOps() {
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setDoubleBuffered(true);
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setBackground(Color.white);
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for (int i = 0; i < imgName.length; i++) {
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Image image = getImage(imgName[i]);
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int iw = image.getWidth(this);
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int ih = image.getHeight(this);
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img[i] = new BufferedImage(iw, ih, BufferedImage.TYPE_INT_RGB);
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img[i].createGraphics().drawImage(image, 0, 0, null);
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}
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slider1 = new JSlider(SwingConstants.VERTICAL, 0, 255, low);
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slider1.setPreferredSize(new Dimension(15, 100));
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slider1.addChangeListener(this);
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slider2 = new JSlider(SwingConstants.VERTICAL, 0, 255, high);
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slider2.setPreferredSize(new Dimension(15, 100));
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slider2.addChangeListener(this);
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setControls(new Component[] { new DemoControls(this), slider1, slider2 });
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setConstraints(new String[] {
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BorderLayout.NORTH, BorderLayout.WEST, BorderLayout.EAST });
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}
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public static void thresholdOp(int low, int high) {
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byte[] threshold = new byte[256];
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for (int j = 0; j < 256; j++) {
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if (j > high) {
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threshold[j] = (byte) 255;
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} else if (j < low) {
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threshold[j] = (byte) 0;
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} else {
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threshold[j] = (byte) j;
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}
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}
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biop[0] = new LookupOp(new ByteLookupTable(0, threshold), null);
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}
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@Override
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public void render(int w, int h, Graphics2D g2) {
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int iw = img[imgIndex].getWidth(null);
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int ih = img[imgIndex].getHeight(null);
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AffineTransform oldXform = g2.getTransform();
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g2.scale(((double) w) / iw, ((double) h) / ih);
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g2.drawImage(img[imgIndex], biop[opsIndex], 0, 0);
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g2.setTransform(oldXform);
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}
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@Override
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public void stateChanged(ChangeEvent e) {
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if (e.getSource().equals(slider1)) {
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if (opsIndex == 0) {
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thresholdOp(slider1.getValue(), high);
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} else {
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rescaleFactor = slider1.getValue();
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biop[1] = new RescaleOp(rescaleFactor / 128.0f, rescaleOffset,
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null);
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}
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} else {
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if (opsIndex == 0) {
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thresholdOp(low, slider2.getValue());
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} else {
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rescaleOffset = slider2.getValue();
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biop[1] = new RescaleOp(rescaleFactor / 128.0f, rescaleOffset,
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null);
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}
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}
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repaint();
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}
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public static void main(String[] s) {
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createDemoFrame(new ImageOps());
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}
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static class DemoControls extends CustomControls implements ActionListener {
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ImageOps demo;
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JComboBox imgCombo, opsCombo;
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Font font = new Font(Font.SERIF, Font.PLAIN, 10);
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@SuppressWarnings("LeakingThisInConstructor")
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public DemoControls(ImageOps demo) {
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super(demo.name);
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this.demo = demo;
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add(imgCombo = new JComboBox());
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imgCombo.setFont(font);
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for (String name : ImageOps.imgName) {
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imgCombo.addItem(name);
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}
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imgCombo.addActionListener(this);
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add(opsCombo = new JComboBox());
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opsCombo.setFont(font);
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for (String name : ImageOps.opsName) {
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opsCombo.addItem(name);
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}
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opsCombo.addActionListener(this);
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}
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@Override
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public void actionPerformed(ActionEvent e) {
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if (e.getSource().equals(opsCombo)) {
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demo.opsIndex = opsCombo.getSelectedIndex();
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if (demo.opsIndex == 0) {
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demo.slider1.setValue(ImageOps.low);
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demo.slider2.setValue(ImageOps.high);
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demo.slider1.setEnabled(true);
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demo.slider2.setEnabled(true);
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} else if (demo.opsIndex == 1) {
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demo.slider1.setValue(ImageOps.rescaleFactor);
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demo.slider2.setValue((int) ImageOps.rescaleOffset);
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demo.slider1.setEnabled(true);
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demo.slider2.setEnabled(true);
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} else {
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demo.slider1.setEnabled(false);
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demo.slider2.setEnabled(false);
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}
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} else if (e.getSource().equals(imgCombo)) {
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demo.imgIndex = imgCombo.getSelectedIndex();
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}
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demo.repaint(10);
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}
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@Override
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public Dimension getPreferredSize() {
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return new Dimension(200, 39);
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}
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@Override
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@SuppressWarnings("SleepWhileHoldingLock")
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public void run() {
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try {
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Thread.sleep(1111);
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} catch (Exception e) {
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return;
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}
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Thread me = Thread.currentThread();
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while (thread == me) {
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for (int i = 0; i < ImageOps.imgName.length; i++) {
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imgCombo.setSelectedIndex(i);
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for (int j = 0; j < ImageOps.opsName.length; j++) {
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opsCombo.setSelectedIndex(j);
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if (j <= 1) {
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for (int k = 50; k <= 200; k += 10) {
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demo.slider1.setValue(k);
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try {
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Thread.sleep(200);
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} catch (InterruptedException e) {
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return;
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}
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}
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}
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try {
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Thread.sleep(4444);
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} catch (InterruptedException e) {
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return;
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}
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}
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}
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}
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thread = null;
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}
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} // End DemoControls
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} // End ImageOps
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