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5
Semester 1/Programming 1/Java/examples/projects/chapter13/imageviewer-final/DarkerFilter.ctxt Executable file
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#BlueJ class context
comment0.params=name
comment0.target=DarkerFilter(java.lang.String)
comment0.text=\n\ Constructor\ for\ objects\ of\ class\ DarkerFilter.\n\ @param\ name\ The\ name\ of\ the\ filter.\n
numComments=1

33
Semester 1/Programming 1/Java/examples/projects/chapter13/imageviewer-final/DarkerFilter.java Executable file
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/**
* An image filter to make the image a bit darker.
*
* @author Michael Kölling and David J. Barnes.
* @version 1.0
*/
public class DarkerFilter extends Filter
{
/**
* Constructor for objects of class DarkerFilter.
* @param name The name of the filter.
*/
public DarkerFilter(String name)
{
super(name);
}
/**
* Apply this filter to an image.
*
* @param image The image to be changed by this filter.
*/
public void apply(OFImage image)
{
int height = image.getHeight();
int width = image.getWidth();
for(int y = 0; y < height; y++) {
for(int x = 0; x < width; x++) {
image.setPixel(x, y, image.getPixel(x, y).darker());
}
}
}
}

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Semester 1/Programming 1/Java/examples/projects/chapter13/imageviewer-final/EdgeFilter.ctxt Executable file
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#BlueJ class context
comment0.params=name
comment0.target=EdgeFilter(java.lang.String)
comment0.text=\n\ Constructor\ for\ objects\ of\ class\ EdgeFilter.\n\ @param\ name\ The\ name\ of\ the\ filter.\n
comment1.params=image
comment1.target=void\ apply(OFImage)
comment1.text=\n\ Apply\ this\ filter\ to\ an\ image.\n\ \n\ @param\ \ image\ \ The\ image\ to\ be\ changed\ by\ this\ filter.\n
comment2.params=xpos\ ypos
comment2.target=java.awt.Color\ edge(int,\ int)
comment2.text=\n\ Return\ a\ new\ color\ that\ is\ the\ smoothed\ color\ of\ a\ given\n\ position.\ The\ "smoothed\ color"\ is\ the\ color\ value\ that\ is\ the\n\ average\ of\ this\ pixel\ and\ all\ the\ adjacent\ pixels.\n\ @param\ xpos\ The\ x\ position\ of\ the\ pixel.\n\ @param\ ypos\ The\ y\ position\ of\ the\ pixel.\n\ @return\ The\ smoothed\ color.\n
comment3.params=pixels
comment3.target=int\ diffRed(java.util.List)
comment3.text=\n\ @param\ pixels\ The\ list\ of\ pixels\ to\ be\ averaged.\n\ @return\ The\ average\ of\ all\ the\ red\ values\ in\ the\ given\ list\ of\ pixels.\n
comment4.params=pixels
comment4.target=int\ diffGreen(java.util.List)
comment4.text=\n\ @param\ pixels\ The\ list\ of\ pixels\ to\ be\ averaged.\n\ @return\ The\ average\ of\ all\ the\ green\ values\ in\ the\ given\ list\ of\ pixels.\n
comment5.params=pixels
comment5.target=int\ diffBlue(java.util.List)
comment5.text=\n\ @param\ pixels\ The\ list\ of\ pixels\ to\ be\ averaged.\n\ @return\ The\ average\ of\ all\ the\ blue\ values\ in\ the\ given\ list\ of\ pixels.\n
numComments=6

143
Semester 1/Programming 1/Java/examples/projects/chapter13/imageviewer-final/EdgeFilter.java Executable file
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import java.awt.Color;
import java.util.List;
import java.util.ArrayList;
/**
* An image filter to detect edges and highlight them, a bit like
* a colored pencil drawing.
*
* @author Michael Kölling and David J. Barnes.
* @version 1.0
*/
public class EdgeFilter extends Filter
{
private static final int TOLERANCE = 20;
private OFImage original;
private int width;
private int height;
/**
* Constructor for objects of class EdgeFilter.
* @param name The name of the filter.
*/
public EdgeFilter(String name)
{
super(name);
}
/**
* Apply this filter to an image.
*
* @param image The image to be changed by this filter.
*/
public void apply(OFImage image)
{
original = new OFImage(image);
width = original.getWidth();
height = original.getHeight();
for(int y = 0; y < height; y++) {
for(int x = 0; x < width; x++) {
image.setPixel(x, y, edge(x, y));
}
}
}
/**
* Return a new color that is the smoothed color of a given
* position. The "smoothed color" is the color value that is the
* average of this pixel and all the adjacent pixels.
* @param xpos The x position of the pixel.
* @param ypos The y position of the pixel.
* @return The smoothed color.
*/
private Color edge(int xpos, int ypos)
{
List<Color> pixels = new ArrayList<>(9);
for(int y = ypos-1; y <= ypos+1; y++) {
for(int x = xpos-1; x <= xpos+1; x++) {
if( x >= 0 && x < width && y >= 0 && y < height ) {
pixels.add(original.getPixel(x, y));
}
}
}
return new Color(255 - diffRed(pixels), 255 - diffGreen(pixels), 255 - diffBlue(pixels));
}
/**
* @param pixels The list of pixels to be averaged.
* @return The average of all the red values in the given list of pixels.
*/
private int diffRed(List<Color> pixels)
{
int max = 0;
int min = 255;
for(Color color : pixels) {
int val = color.getRed();
if(val > max) {
max = val;
}
if(val < min) {
min = val;
}
}
int difference = max - min - TOLERANCE;
if(difference < 0) {
difference = 0;
}
return difference;
}
/**
* @param pixels The list of pixels to be averaged.
* @return The average of all the green values in the given list of pixels.
*/
private int diffGreen(List<Color> pixels)
{
int max = 0;
int min = 255;
for(Color color : pixels) {
int val = color.getGreen();
if(val > max) {
max = val;
}
if(val < min) {
min = val;
}
}
int difference = max - min - TOLERANCE;
if(difference < 0) {
difference = 0;
}
return difference;
}
/**
* @param pixels The list of pixels to be averaged.
* @return The average of all the blue values in the given list of pixels.
*/
private int diffBlue(List<Color> pixels)
{
int max = 0;
int min = 255;
for(Color color : pixels) {
int val = color.getBlue();
if(val > max) {
max = val;
}
if(val < min) {
min = val;
}
}
int difference = max - min - TOLERANCE;
if(difference < 0) {
difference = 0;
}
return difference;
}
}

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Semester 1/Programming 1/Java/examples/projects/chapter13/imageviewer-final/Filter.ctxt Executable file
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#BlueJ class context
comment0.params=name
comment0.target=Filter(java.lang.String)
comment0.text=\n\ Create\ a\ new\ filter\ with\ a\ given\ name.\n\ @param\ name\ The\ name\ of\ the\ filter.\n
comment1.params=
comment1.target=java.lang.String\ getName()
comment1.text=\n\ Return\ the\ name\ of\ this\ filter.\n\ \n\ @return\ \ The\ name\ of\ this\ filter.\n
numComments=2

38
Semester 1/Programming 1/Java/examples/projects/chapter13/imageviewer-final/Filter.java Executable file
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/**
* Filter is an abstract superclass for all image filters in this
* application. Filters can be applied to OFImages by invoking the apply
* method.
*
* @author Michael Kölling and David J. Barnes.
* @version 1.0
*/
public abstract class Filter
{
private String name;
/**
* Create a new filter with a given name.
* @param name The name of the filter.
*/
public Filter(String name)
{
this.name = name;
}
/**
* Return the name of this filter.
*
* @return The name of this filter.
*/
public String getName()
{
return name;
}
/**
* Apply this filter to an image.
*
* @param image The image to be changed by this filter.
*/
public abstract void apply(OFImage image);
}

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Semester 1/Programming 1/Java/examples/projects/chapter13/imageviewer-final/FishEyeFilter.ctxt Executable file
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#BlueJ class context
comment0.params=name
comment0.target=FishEyeFilter(java.lang.String)
comment0.text=\n\ Constructor\ for\ objects\ of\ class\ LensFilter.\n\ @param\ name\ The\ name\ of\ the\ filter.\n
comment1.params=width
comment1.target=int[]\ computeXArray(int)
comment1.text=\n\ Compute\ and\ return\ an\ array\ of\ horizontal\ offsets\ for\ each\ pixel\ column.\n\ These\ can\ then\ be\ applied\ as\ the\ horizontal\ offset\ for\ each\ pixel.\n
comment2.params=height
comment2.target=int[]\ computeYArray(int)
comment2.text=\n\ Compute\ and\ return\ an\ array\ of\ vertical\ offsets\ for\ each\ pixel\ row.\n\ These\ can\ then\ be\ applied\ as\ the\ vertical\ offset\ for\ each\ pixel.\n
numComments=3

73
Semester 1/Programming 1/Java/examples/projects/chapter13/imageviewer-final/FishEyeFilter.java Executable file
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import java.awt.Color;
/**
* An image filter to create an effect similar to a fisheye camera lens.
* (Works especially well on portraits.)
*
* @author Michael Kölling and David J. Barnes.
* @version 1.0
*/
public class FishEyeFilter extends Filter
{
// constants:
private final static int SCALE = 20; // this defines the strenght of the filter
private final static double TWO_PI = 2 * Math.PI;
/**
* Constructor for objects of class LensFilter.
* @param name The name of the filter.
*/
public FishEyeFilter(String name)
{
super(name);
}
/**
* Apply this filter to an image.
*
* @param image The image to be changed by this filter.
*/
public void apply(OFImage image)
{
int height = image.getHeight();
int width = image.getWidth();
OFImage original = new OFImage(image);
int[] xa = computeXArray(width);
int[] ya = computeYArray(height);
for(int y = 0; y < height; y++) {
for(int x = 0; x < width; x++) {
image.setPixel(x, y, original.getPixel(x + xa[x], y + ya[y]));
}
}
}
/**
* Compute and return an array of horizontal offsets for each pixel column.
* These can then be applied as the horizontal offset for each pixel.
*/
private int[] computeXArray(int width)
{
int[] xArray = new int[width];
for(int i=0; i < width; i++) {
xArray[i] = (int)(Math.sin( ((double)i / width) * TWO_PI) * SCALE);
}
return xArray;
}
/**
* Compute and return an array of vertical offsets for each pixel row.
* These can then be applied as the vertical offset for each pixel.
*/
private int[] computeYArray(int height)
{
int[] yArray = new int[height];
for(int i=0; i < height; i++) {
yArray[i] = (int)(Math.sin( ((double)i / height) * TWO_PI) * SCALE);
}
return yArray;
}
}

5
Semester 1/Programming 1/Java/examples/projects/chapter13/imageviewer-final/GrayScaleFilter.ctxt Executable file
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#BlueJ class context
comment0.params=name
comment0.target=GrayScaleFilter(java.lang.String)
comment0.text=\n\ Constructor\ for\ objects\ of\ class\ GrayScaleFilter.\n\ @param\ name\ The\ name\ of\ the\ filter.\n
numComments=1

37
Semester 1/Programming 1/Java/examples/projects/chapter13/imageviewer-final/GrayScaleFilter.java Executable file
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import java.awt.Color;
/**
* An image filter to remove color from an image.
*
* @author Michael Kölling and David J. Barnes.
* @version 1.0
*/
public class GrayScaleFilter extends Filter
{
/**
* Constructor for objects of class GrayScaleFilter.
* @param name The name of the filter.
*/
public GrayScaleFilter(String name)
{
super(name);
}
/**
* Apply this filter to an image.
*
* @param image The image to be changed by this filter.
*/
public void apply(OFImage image)
{
int height = image.getHeight();
int width = image.getWidth();
for(int y = 0; y < height; y++) {
for(int x = 0; x < width; x++) {
Color pix = image.getPixel(x, y);
int avg = (pix.getRed() + pix.getGreen() + pix.getBlue()) / 3;
image.setPixel(x, y, new Color(avg, avg, avg));
}
}
}
}

8
Semester 1/Programming 1/Java/examples/projects/chapter13/imageviewer-final/ImageFileManager.ctxt Executable file
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#BlueJ class context
comment0.params=imageFile
comment0.target=OFImage\ loadImage(java.io.File)
comment0.text=\n\ Read\ an\ image\ file\ from\ disk\ and\ return\ it\ as\ an\ image.\ This\ method\n\ can\ read\ JPG\ and\ PNG\ file\ formats.\ In\ case\ of\ any\ problem\ (e.g\ the\ file\ \n\ does\ not\ exist,\ is\ in\ an\ undecodable\ format,\ or\ any\ other\ read\ error)\ \n\ this\ method\ returns\ null.\n\ \n\ @param\ imageFile\ \ The\ image\ file\ to\ be\ loaded.\n\ @return\ \ \ \ \ \ \ \ \ \ \ The\ image\ object\ or\ null\ if\ it\ could\ not\ be\ read.\n
comment1.params=image\ file
comment1.target=void\ saveImage(OFImage,\ java.io.File)
comment1.text=\n\ Write\ an\ image\ file\ to\ disk.\ The\ file\ format\ is\ JPG.\ In\ case\ of\ any\ \n\ problem\ the\ method\ just\ silently\ returns.\n\ \n\ @param\ image\ \ The\ image\ to\ be\ saved.\n\ @param\ file\ \ \ The\ file\ to\ save\ to.\n
numComments=2

61
Semester 1/Programming 1/Java/examples/projects/chapter13/imageviewer-final/ImageFileManager.java Executable file
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import java.awt.image.*;
import javax.imageio.*;
import java.io.*;
/**
* ImageFileManager is a small utility class with static methods to load
* and save images.
*
* The files on disk can be in JPG or PNG image format. For files written
* by this class, the format is determined by the constant IMAGE_FORMAT.
*
* @author Michael Kölling and David J. Barnes.
* @version 2.0
*/
public class ImageFileManager
{
// A constant for the image format that this writer uses for writing.
// Available formats are "jpg" and "png".
private static final String IMAGE_FORMAT = "jpg";
/**
* Read an image file from disk and return it as an image. This method
* can read JPG and PNG file formats. In case of any problem (e.g the file
* does not exist, is in an undecodable format, or any other read error)
* this method returns null.
*
* @param imageFile The image file to be loaded.
* @return The image object or null if it could not be read.
*/
public static OFImage loadImage(File imageFile)
{
try {
BufferedImage image = ImageIO.read(imageFile);
if(image == null || (image.getWidth(null) < 0)) {
// we could not load the image - probably invalid file format
return null;
}
return new OFImage(image);
}
catch(IOException exc) {
return null;
}
}
/**
* Write an image file to disk. The file format is JPG. In case of any
* problem the method just silently returns.
*
* @param image The image to be saved.
* @param file The file to save to.
*/
public static void saveImage(OFImage image, File file)
{
try {
ImageIO.write(image, IMAGE_FORMAT, file);
}
catch(IOException exc) {
return;
}
}
}

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Semester 1/Programming 1/Java/examples/projects/chapter13/imageviewer-final/ImagePanel.ctxt Executable file
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#BlueJ class context
comment0.params=
comment0.target=ImagePanel()
comment0.text=\n\ Create\ a\ new,\ empty\ ImagePanel.\n
comment1.params=
comment1.target=void\ clearImage()
comment1.text=\n\ Clear\ the\ image\ on\ this\ panel.\n
comment2.params=
comment2.target=java.awt.Dimension\ getPreferredSize()
comment2.text=\n\ Tell\ the\ layout\ manager\ how\ big\ we\ would\ like\ to\ be.\n\ (This\ method\ gets\ called\ by\ layout\ managers\ for\ placing\n\ the\ components.)\n\ \n\ @return\ The\ preferred\ dimension\ for\ this\ component.\n
comment3.params=g
comment3.target=void\ paintComponent(java.awt.Graphics)
comment3.text=\n\ This\ component\ needs\ to\ be\ redisplayed.\ Copy\ the\ internal\ image\ \n\ to\ screen.\ (This\ method\ gets\ called\ by\ the\ Swing\ screen\ painter\ \n\ every\ time\ it\ want\ this\ component\ displayed.)\n\ \n\ @param\ g\ The\ graphics\ context\ that\ can\ be\ used\ to\ draw\ on\ this\ component.\n
numComments=4

89
Semester 1/Programming 1/Java/examples/projects/chapter13/imageviewer-final/ImagePanel.java Executable file
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import java.awt.*;
import javax.swing.*;
import java.awt.image.*;
/**
* An ImagePanel is a Swing component that can display an OFImage.
* It is constructed as a subclass of JComponent with the added functionality
* of setting an OFImage that will be displayed on the surface of this
* component.
*
* @author Michael Kölling and David J. Barnes.
* @version 1.0
*/
public class ImagePanel extends JComponent
{
// The current width and height of this panel
private int width, height;
// An internal image buffer that is used for painting. For
// actual display, this image buffer is then copied to screen.
private OFImage panelImage;
/**
* Create a new, empty ImagePanel.
*/
public ImagePanel()
{
width = 360; // arbitrary size for empty panel
height = 240;
panelImage = null;
}
/**
* Set the image that this panel should show.
*
* @param image The image to be displayed.
*/
public void setImage(OFImage image)
{
if(image != null) {
width = image.getWidth();
height = image.getHeight();
panelImage = image;
repaint();
}
}
/**
* Clear the image on this panel.
*/
public void clearImage()
{
Graphics imageGraphics = panelImage.getGraphics();
imageGraphics.setColor(Color.LIGHT_GRAY);
imageGraphics.fillRect(0, 0, width, height);
repaint();
}
// The following methods are redefinitions of methods
// inherited from superclasses.
/**
* Tell the layout manager how big we would like to be.
* (This method gets called by layout managers for placing
* the components.)
*
* @return The preferred dimension for this component.
*/
public Dimension getPreferredSize()
{
return new Dimension(width, height);
}
/**
* This component needs to be redisplayed. Copy the internal image
* to screen. (This method gets called by the Swing screen painter
* every time it want this component displayed.)
*
* @param g The graphics context that can be used to draw on this component.
*/
public void paintComponent(Graphics g)
{
Dimension size = getSize();
g.clearRect(0, 0, size.width, size.height);
if(panelImage != null) {
g.drawImage(panelImage, 0, 0, null);
}
}
}

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Semester 1/Programming 1/Java/examples/projects/chapter13/imageviewer-final/ImageViewer.ctxt Executable file
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#BlueJ class context
comment0.params=
comment0.target=ImageViewer()
comment0.text=\n\ Create\ an\ ImageViewer\ and\ display\ its\ GUI\ on\ screen.\n
comment1.params=
comment1.target=void\ openFile()
comment1.text=\n\ Open\ function\:\ open\ a\ file\ chooser\ to\ select\ a\ new\ image\ file,\n\ and\ then\ display\ the\ chosen\ image.\n
comment10.params=text
comment10.target=void\ showStatus(java.lang.String)
comment10.text=\n\ Show\ a\ message\ in\ the\ status\ bar\ at\ the\ bottom\ of\ the\ screen.\n\ @param\ text\ The\ status\ message.\n
comment11.params=status
comment11.target=void\ setButtonsEnabled(boolean)
comment11.text=\n\ Enable\ or\ disable\ all\ toolbar\ buttons.\n\ \n\ @param\ status\ \ 'true'\ to\ enable\ the\ buttons,\ 'false'\ to\ disable.\n
comment12.params=
comment12.target=java.util.List\ createFilters()
comment12.text=\n\ Create\ a\ list\ with\ all\ the\ known\ filters.\n\ @return\ The\ list\ of\ filters.\n
comment13.params=
comment13.target=void\ makeFrame()
comment13.text=\n\ Create\ the\ Swing\ frame\ and\ its\ content.\n
comment14.params=frame
comment14.target=void\ makeMenuBar(javax.swing.JFrame)
comment14.text=\n\ Create\ the\ main\ frame's\ menu\ bar.\n\ \n\ @param\ frame\ \ \ The\ frame\ that\ the\ menu\ bar\ should\ be\ added\ to.\n
comment2.params=
comment2.target=void\ close()
comment2.text=\n\ Close\ function\:\ close\ the\ current\ image.\n
comment3.params=
comment3.target=void\ saveAs()
comment3.text=\n\ Save\ As\ function\:\ save\ the\ current\ image\ to\ a\ file.\n
comment4.params=
comment4.target=void\ quit()
comment4.text=\n\ Quit\ function\:\ quit\ the\ application.\n
comment5.params=filter
comment5.target=void\ applyFilter(Filter)
comment5.text=\n\ Apply\ a\ given\ filter\ to\ the\ current\ image.\n\ \n\ @param\ filter\ \ \ The\ filter\ object\ to\ be\ applied.\n
comment6.params=
comment6.target=void\ showAbout()
comment6.text=\n\ 'About'\ function\:\ show\ the\ 'about'\ box.\n
comment7.params=
comment7.target=void\ makeLarger()
comment7.text=\n\ Make\ the\ current\ picture\ larger.\n
comment8.params=
comment8.target=void\ makeSmaller()
comment8.text=\n\ Make\ the\ current\ picture\ smaller.\n
comment9.params=filename
comment9.target=void\ showFilename(java.lang.String)
comment9.text=\n\ Show\ the\ file\ name\ of\ the\ current\ image\ in\ the\ fils\ display\ label.\n\ 'null'\ may\ be\ used\ as\ a\ parameter\ if\ no\ file\ is\ currently\ loaded.\n\ \n\ @param\ filename\ \ The\ file\ name\ to\ be\ displayed,\ or\ null\ for\ 'no\ file'.\n
numComments=15

381
Semester 1/Programming 1/Java/examples/projects/chapter13/imageviewer-final/ImageViewer.java Executable file
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import java.awt.*;
import java.awt.event.*;
import java.awt.image.*;
import javax.swing.*;
import javax.swing.border.*;
import java.io.File;
import java.util.List;
import java.util.ArrayList;
import java.util.Iterator;
/**
* ImageViewer is the main class of the image viewer application. It builds and
* displays the application GUI and initialises all other components.
*
* To start the application, create an object of this class.
*
* @author Michael Kölling and David J. Barnes.
* @version 3.1
*/
public class ImageViewer
{
// static fields:
private static final String VERSION = "Version 3.1";
private static JFileChooser fileChooser = new JFileChooser(System.getProperty("user.dir"));
// fields:
private JFrame frame;
private ImagePanel imagePanel;
private JLabel filenameLabel;
private JLabel statusLabel;
private JButton smallerButton;
private JButton largerButton;
private OFImage currentImage;
private List<Filter> filters;
/**
* Create an ImageViewer and display its GUI on screen.
*/
public ImageViewer()
{
currentImage = null;
filters = createFilters();
makeFrame();
}
// ---- implementation of menu functions ----
/**
* Open function: open a file chooser to select a new image file,
* and then display the chosen image.
*/
private void openFile()
{
int returnVal = fileChooser.showOpenDialog(frame);
if(returnVal != JFileChooser.APPROVE_OPTION) {
return; // cancelled
}
File selectedFile = fileChooser.getSelectedFile();
currentImage = ImageFileManager.loadImage(selectedFile);
if(currentImage == null) { // image file was not a valid image
JOptionPane.showMessageDialog(frame,
"The file was not in a recognized image file format.",
"Image Load Error",
JOptionPane.ERROR_MESSAGE);
return;
}
imagePanel.setImage(currentImage);
setButtonsEnabled(true);
showFilename(selectedFile.getPath());
showStatus("File loaded.");
frame.pack();
}
/**
* Close function: close the current image.
*/
private void close()
{
currentImage = null;
imagePanel.clearImage();
showFilename(null);
setButtonsEnabled(false);
}
/**
* Save As function: save the current image to a file.
*/
private void saveAs()
{
if(currentImage != null) {
int returnVal = fileChooser.showSaveDialog(frame);
if(returnVal != JFileChooser.APPROVE_OPTION) {
return; // cancelled
}
File selectedFile = fileChooser.getSelectedFile();
ImageFileManager.saveImage(currentImage, selectedFile);
showFilename(selectedFile.getPath());
}
}
/**
* Quit function: quit the application.
*/
private void quit()
{
System.exit(0);
}
/**
* Apply a given filter to the current image.
*
* @param filter The filter object to be applied.
*/
private void applyFilter(Filter filter)
{
if(currentImage != null) {
filter.apply(currentImage);
frame.repaint();
showStatus("Applied: " + filter.getName());
}
else {
showStatus("No image loaded.");
}
}
/**
* 'About' function: show the 'about' box.
*/
private void showAbout()
{
JOptionPane.showMessageDialog(frame,
"ImageViewer\n" + VERSION,
"About ImageViewer",
JOptionPane.INFORMATION_MESSAGE);
}
/**
* Make the current picture larger.
*/
private void makeLarger()
{
if(currentImage != null) {
// create new image with double size
int width = currentImage.getWidth();
int height = currentImage.getHeight();
OFImage newImage = new OFImage(width * 2, height * 2);
// copy pixel data into new image
for(int y = 0; y < height; y++) {
for(int x = 0; x < width; x++) {
Color col = currentImage.getPixel(x, y);
newImage.setPixel(x * 2, y * 2, col);
newImage.setPixel(x * 2 + 1, y * 2, col);
newImage.setPixel(x * 2, y * 2 + 1, col);
newImage.setPixel(x * 2+1, y * 2 + 1, col);
}
}
currentImage = newImage;
imagePanel.setImage(currentImage);
frame.pack();
}
}
/**
* Make the current picture smaller.
*/
private void makeSmaller()
{
if(currentImage != null) {
// create new image with double size
int width = currentImage.getWidth() / 2;
int height = currentImage.getHeight() / 2;
OFImage newImage = new OFImage(width, height);
// copy pixel data into new image
for(int y = 0; y < height; y++) {
for(int x = 0; x < width; x++) {
newImage.setPixel(x, y, currentImage.getPixel(x * 2, y * 2));
}
}
currentImage = newImage;
imagePanel.setImage(currentImage);
frame.pack();
}
}
// ---- support methods ----
/**
* Show the file name of the current image in the fils display label.
* 'null' may be used as a parameter if no file is currently loaded.
*
* @param filename The file name to be displayed, or null for 'no file'.
*/
private void showFilename(String filename)
{
if(filename == null) {
filenameLabel.setText("No file displayed.");
}
else {
filenameLabel.setText("File: " + filename);
}
}
/**
* Show a message in the status bar at the bottom of the screen.
* @param text The status message.
*/
private void showStatus(String text)
{
statusLabel.setText(text);
}
/**
* Enable or disable all toolbar buttons.
*
* @param status 'true' to enable the buttons, 'false' to disable.
*/
private void setButtonsEnabled(boolean status)
{
smallerButton.setEnabled(status);
largerButton.setEnabled(status);
}
/**
* Create a list with all the known filters.
* @return The list of filters.
*/
private List<Filter> createFilters()
{
List<Filter> filterList = new ArrayList<>();
filterList.add(new DarkerFilter("Darker"));
filterList.add(new LighterFilter("Lighter"));
filterList.add(new ThresholdFilter("Threshold"));
filterList.add(new InvertFilter("Invert"));
filterList.add(new SolarizeFilter("Solarize"));
filterList.add(new SmoothFilter("Smooth"));
filterList.add(new PixelizeFilter("Pixelize"));
filterList.add(new MirrorFilter("Mirror"));
filterList.add(new GrayScaleFilter("Grayscale"));
filterList.add(new EdgeFilter("Edge Detection"));
filterList.add(new FishEyeFilter("Fish Eye"));
return filterList;
}
// ---- Swing stuff to build the frame and all its components and menus ----
/**
* Create the Swing frame and its content.
*/
private void makeFrame()
{
frame = new JFrame("ImageViewer");
JPanel contentPane = (JPanel)frame.getContentPane();
contentPane.setBorder(new EmptyBorder(12, 12, 12, 12));
makeMenuBar(frame);
// Specify the layout manager with nice spacing
contentPane.setLayout(new BorderLayout(6, 6));
// Create the image pane in the center
imagePanel = new ImagePanel();
imagePanel.setBorder(new EtchedBorder());
contentPane.add(imagePanel, BorderLayout.CENTER);
// Create two labels at top and bottom for the file name and status messages
filenameLabel = new JLabel();
contentPane.add(filenameLabel, BorderLayout.NORTH);
statusLabel = new JLabel(VERSION);
contentPane.add(statusLabel, BorderLayout.SOUTH);
// Create the toolbar with the buttons
JPanel toolbar = new JPanel();
toolbar.setLayout(new GridLayout(0, 1));
smallerButton = new JButton("Smaller");
smallerButton.addActionListener(e -> makeSmaller());
toolbar.add(smallerButton);
largerButton = new JButton("Larger");
largerButton.addActionListener(e -> makeLarger());
toolbar.add(largerButton);
// Add toolbar into panel with flow layout for spacing
JPanel flow = new JPanel();
flow.add(toolbar);
contentPane.add(flow, BorderLayout.WEST);
// building is done - arrange the components
showFilename(null);
setButtonsEnabled(false);
frame.pack();
// place the frame at the center of the screen and show
Dimension d = Toolkit.getDefaultToolkit().getScreenSize();
frame.setLocation(d.width/2 - frame.getWidth()/2, d.height/2 - frame.getHeight()/2);
frame.setVisible(true);
}
/**
* Create the main frame's menu bar.
*
* @param frame The frame that the menu bar should be added to.
*/
private void makeMenuBar(JFrame frame)
{
final int SHORTCUT_MASK =
Toolkit.getDefaultToolkit().getMenuShortcutKeyMask();
JMenuBar menubar = new JMenuBar();
frame.setJMenuBar(menubar);
JMenu menu;
JMenuItem item;
// create the File menu
menu = new JMenu("File");
menubar.add(menu);
item = new JMenuItem("Open...");
item.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_O, SHORTCUT_MASK));
item.addActionListener(e -> openFile());
menu.add(item);
item = new JMenuItem("Close");
item.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_W, SHORTCUT_MASK));
item.addActionListener(e -> close());
menu.add(item);
menu.addSeparator();
item = new JMenuItem("Save As...");
item.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_S, SHORTCUT_MASK));
item.addActionListener(e -> saveAs());
menu.add(item);
menu.addSeparator();
item = new JMenuItem("Quit");
item.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_Q, SHORTCUT_MASK));
item.addActionListener(e -> quit());
menu.add(item);
// create the Filter menu
menu = new JMenu("Filter");
menubar.add(menu);
for(Filter filter : filters) {
item = new JMenuItem(filter.getName());
item.addActionListener(e -> applyFilter(filter));
menu.add(item);
}
// create the Help menu
menu = new JMenu("Help");
menubar.add(menu);
item = new JMenuItem("About ImageViewer...");
item.addActionListener(e -> showAbout());
menu.add(item);
}
}

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Semester 1/Programming 1/Java/examples/projects/chapter13/imageviewer-final/InvertFilter.ctxt Executable file
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#BlueJ class context
comment0.params=name
comment0.target=InvertFilter(java.lang.String)
comment0.text=\n\ Constructor\ for\ objects\ of\ class\ InvertFilter.\n\ @param\ name\ The\ name\ of\ the\ filter.\n
numComments=1

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Semester 1/Programming 1/Java/examples/projects/chapter13/imageviewer-final/InvertFilter.java Executable file
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import java.awt.Color;
/**
* An image filter to invert colors.
*
* @author Michael Kölling and David J. Barnes.
* @version 1.0
*/
public class InvertFilter extends Filter
{
/**
* Constructor for objects of class InvertFilter.
* @param name The name of the filter.
*/
public InvertFilter(String name)
{
super(name);
}
/**
* Apply this filter to an image.
*
* @param image The image to be changed by this filter.
*/
public void apply(OFImage image)
{
int height = image.getHeight();
int width = image.getWidth();
for(int y = 0; y < height; y++) {
for(int x = 0; x < width; x++) {
Color pix = image.getPixel(x, y);
image.setPixel(x, y, new Color(255 - pix.getRed(),
255 - pix.getGreen(),
255 - pix.getBlue()));
}
}
}
}

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Semester 1/Programming 1/Java/examples/projects/chapter13/imageviewer-final/LighterFilter.ctxt Executable file
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#BlueJ class context
comment0.params=name
comment0.target=LighterFilter(java.lang.String)
comment0.text=\n\ Constructor\ for\ objects\ of\ class\ LighterFilter.\n\ @param\ name\ The\ name\ of\ the\ filter.\n
numComments=1

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Semester 1/Programming 1/Java/examples/projects/chapter13/imageviewer-final/LighterFilter.java Executable file
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/**
* An image filter to make the image a bit lighter.
*
* @author Michael Kölling and David J. Barnes.
* @version 1.0
*/
public class LighterFilter extends Filter
{
/**
* Constructor for objects of class LighterFilter.
* @param name The name of the filter.
*/
public LighterFilter(String name)
{
super(name);
}
/**
* Apply this filter to an image.
*
* @param image The image to be changed by this filter.
*/
public void apply(OFImage image)
{
int height = image.getHeight();
int width = image.getWidth();
for(int y = 0; y < height; y++) {
for(int x = 0; x < width; x++) {
image.setPixel(x, y, image.getPixel(x, y).brighter());
}
}
}
}

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Semester 1/Programming 1/Java/examples/projects/chapter13/imageviewer-final/MirrorFilter.ctxt Executable file
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#BlueJ class context
comment0.params=name
comment0.target=MirrorFilter(java.lang.String)
comment0.text=\n\ Constructor\ for\ objects\ of\ class\ MirrorFilter.\n\ @param\ name\ The\ name\ of\ the\ filter.\n
numComments=1

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Semester 1/Programming 1/Java/examples/projects/chapter13/imageviewer-final/MirrorFilter.java Executable file
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import java.awt.Color;
/**
* An image filter to mirror (flip) the image horizontally.
*
* @author Michael Kölling and David J. Barnes.
* @version 1.0
*/
public class MirrorFilter extends Filter
{
/**
* Constructor for objects of class MirrorFilter.
* @param name The name of the filter.
*/
public MirrorFilter(String name)
{
super(name);
}
/**
* Apply this filter to an image.
*
* @param image The image to be changed by this filter.
*/
public void apply(OFImage image)
{
int height = image.getHeight();
int width = image.getWidth();
for(int y = 0; y < height; y++) {
for(int x = 0; x < width / 2; x++) {
Color left = image.getPixel(x, y);
image.setPixel(x, y, image.getPixel(width - 1 - x, y));
image.setPixel(width - 1 - x, y, left);
}
}
}
}

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Semester 1/Programming 1/Java/examples/projects/chapter13/imageviewer-final/OFImage.ctxt Executable file
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#BlueJ class context
comment0.params=image
comment0.target=OFImage(java.awt.image.BufferedImage)
comment0.text=\n\ Create\ an\ OFImage\ copied\ from\ a\ BufferedImage.\n\ @param\ image\ The\ image\ to\ copy.\n
comment1.params=width\ height
comment1.target=OFImage(int,\ int)
comment1.text=\n\ Create\ an\ OFImage\ with\ specified\ size\ and\ unspecified\ content.\n\ @param\ width\ The\ width\ of\ the\ image.\n\ @param\ height\ The\ height\ of\ the\ image.\n
comment2.params=x\ y\ col
comment2.target=void\ setPixel(int,\ int,\ java.awt.Color)
comment2.text=\n\ Set\ a\ given\ pixel\ of\ this\ image\ to\ a\ specified\ color.\ The\n\ color\ is\ represented\ as\ an\ (r,g,b)\ value.\n\ @param\ x\ The\ x\ position\ of\ the\ pixel.\n\ @param\ y\ The\ y\ position\ of\ the\ pixel.\n\ @param\ col\ The\ color\ of\ the\ pixel.\n
comment3.params=x\ y
comment3.target=java.awt.Color\ getPixel(int,\ int)
comment3.text=\n\ Get\ the\ color\ value\ at\ a\ specified\ pixel\ position.\n\ @param\ x\ The\ x\ position\ of\ the\ pixel.\n\ @param\ y\ The\ y\ position\ of\ the\ pixel.\n\ @return\ The\ color\ of\ the\ pixel\ at\ the\ given\ position.\n
numComments=4

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Semester 1/Programming 1/Java/examples/projects/chapter13/imageviewer-final/OFImage.java Executable file
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import java.awt.*;
import java.awt.image.*;
import javax.swing.*;
/**
* OFImage is a class that defines an image in OF (Objects First) format.
*
* @author Michael Kölling and David J. Barnes.
* @version 2.0
*/
public class OFImage extends BufferedImage
{
/**
* Create an OFImage copied from a BufferedImage.
* @param image The image to copy.
*/
public OFImage(BufferedImage image)
{
super(image.getColorModel(), image.copyData(null),
image.isAlphaPremultiplied(), null);
}
/**
* Create an OFImage with specified size and unspecified content.
* @param width The width of the image.
* @param height The height of the image.
*/
public OFImage(int width, int height)
{
super(width, height, TYPE_INT_RGB);
}
/**
* Set a given pixel of this image to a specified color. The
* color is represented as an (r,g,b) value.
* @param x The x position of the pixel.
* @param y The y position of the pixel.
* @param col The color of the pixel.
*/
public void setPixel(int x, int y, Color col)
{
int pixel = col.getRGB();
setRGB(x, y, pixel);
}
/**
* Get the color value at a specified pixel position.
* @param x The x position of the pixel.
* @param y The y position of the pixel.
* @return The color of the pixel at the given position.
*/
public Color getPixel(int x, int y)
{
int pixel = getRGB(x, y);
return new Color(pixel);
}
}

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Semester 1/Programming 1/Java/examples/projects/chapter13/imageviewer-final/PixelizeFilter.ctxt Executable file
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#BlueJ class context
comment0.params=name
comment0.target=PixelizeFilter(java.lang.String)
comment0.text=\n\ Constructor\ for\ objects\ of\ class\ PixelizeFilter.\n\ @param\ name\ The\ name\ of\ the\ filter.\n
numComments=1

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Semester 1/Programming 1/Java/examples/projects/chapter13/imageviewer-final/PixelizeFilter.java Executable file
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import java.awt.Color;
/**
* An image filter to create a pixelization effect, like an enlarged
* low-resolution digital image.
*
* @author Michael Kölling and David J. Barnes.
* @version 1.0
*/
public class PixelizeFilter extends Filter
{
/**
* Constructor for objects of class PixelizeFilter.
* @param name The name of the filter.
*/
public PixelizeFilter(String name)
{
super(name);
}
/**
* Apply this filter to an image.
*
* @param image The image to be changed by this filter.
*/
public void apply(OFImage image)
{
final int PIXEL_SIZE = 5;
int width = image.getWidth();
int height = image.getHeight();
for(int y = 0; y < height; y += PIXEL_SIZE) {
for(int x = 0; x < width; x += PIXEL_SIZE) {
Color pix = image.getPixel(x, y);
for(int dy = y; dy < y + PIXEL_SIZE; dy++) {
for(int dx = x; dx < x + PIXEL_SIZE; dx++) {
if( dx < width && dy < height )
image.setPixel(dx, dy, pix);
}
}
}
}
}
}

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Semester 1/Programming 1/Java/examples/projects/chapter13/imageviewer-final/README.TXT Executable file
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Project "imageviewer-final" (version 3.1)
Authors: David Barnes and Michael Kölling
This project is part of the material for the book
Objects First with Java - A Practical Introduction using BlueJ
Sixth edition
David J. Barnes and Michael Kölling
Pearson Education, 2016
It is discussed in chapter 13.
This project demonstrates the building of a simple GUI (including labels,
buttons, layout managers, event handling, menus, dialogs) as well as a bit of
image processing.
This project is started by creating an object of class ImageViewer. This will
automatically display the application's GUI - no further interaction with the
object on the object bench is necessary.
WARNING:
It sometimes happens (unfortunately) that the image viewer window opens BEHIND the
BlueJ window. This can be confusing, since it initially appears as if nothing
is happening.

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Semester 1/Programming 1/Java/examples/projects/chapter13/imageviewer-final/SmoothFilter.ctxt Executable file
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#BlueJ class context
comment0.params=name
comment0.target=SmoothFilter(java.lang.String)
comment0.text=\n\ Constructor\ for\ objects\ of\ class\ SmoothFilter.\n\ @param\ name\ The\ name\ of\ the\ filter.\n
comment1.params=image
comment1.target=void\ apply(OFImage)
comment1.text=\n\ Apply\ this\ filter\ to\ an\ image.\n\ \n\ @param\ \ image\ \ The\ image\ to\ be\ changed\ by\ this\ filter.\n
comment2.params=xpos\ ypos
comment2.target=java.awt.Color\ smooth(int,\ int)
comment2.text=\n\ Return\ a\ new\ color\ that\ is\ the\ smoothed\ color\ of\ a\ given\n\ position.\ The\ "smoothed\ color"\ is\ the\ color\ value\ that\ is\ the\n\ average\ of\ this\ pixel\ and\ all\ the\ adjacent\ pixels.\n\ @param\ xpos\ The\ xposition\ of\ the\ pixel.\n\ @param\ ypos\ The\ yposition\ of\ the\ pixel.\n\ @return\ The\ smoothed\ color.\n
comment3.params=pixels
comment3.target=int\ avgRed(java.util.List)
comment3.text=\n\ @param\ pixels\ The\ list\ of\ pixels.\n\ @return\ The\ average\ of\ all\ the\ red\ values\ in\ the\ given\ list\ of\ pixels.\n
comment4.params=pixels
comment4.target=int\ avgGreen(java.util.List)
comment4.text=\n\ @param\ pixels\ The\ list\ of\ pixels.\n\ @return\ The\ average\ of\ all\ the\ green\ values\ in\ the\ given\ list\ of\ pixels.\n
comment5.params=pixels
comment5.target=int\ avgBlue(java.util.List)
comment5.text=\n\ @param\ pixels\ The\ list\ of\ pixels.\n\ @return\ The\ average\ of\ all\ the\ blue\ values\ in\ the\ given\ list\ of\ pixels.\n
numComments=6

105
Semester 1/Programming 1/Java/examples/projects/chapter13/imageviewer-final/SmoothFilter.java Executable file
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import java.awt.Color;
import java.util.List;
import java.util.ArrayList;
/**
* An image filter to reduce sharp edges and pixelization. A bit like
* a soft lens.
*
* @author Michael Kölling and David J. Barnes.
* @version 1.0
*/
public class SmoothFilter extends Filter
{
private OFImage original;
private int width;
private int height;
/**
* Constructor for objects of class SmoothFilter.
* @param name The name of the filter.
*/
public SmoothFilter(String name)
{
super(name);
}
/**
* Apply this filter to an image.
*
* @param image The image to be changed by this filter.
*/
public void apply(OFImage image)
{
original = new OFImage(image);
width = original.getWidth();
height = original.getHeight();
for(int y = 0; y < height; y++) {
for(int x = 0; x < width; x++) {
image.setPixel(x, y, smooth(x, y));
}
}
}
/**
* Return a new color that is the smoothed color of a given
* position. The "smoothed color" is the color value that is the
* average of this pixel and all the adjacent pixels.
* @param xpos The xposition of the pixel.
* @param ypos The yposition of the pixel.
* @return The smoothed color.
*/
private Color smooth(int xpos, int ypos)
{
List<Color> pixels = new ArrayList<>(9);
for(int y = ypos - 1; y <= ypos + 1; y++) {
for(int x = xpos - 1; x <= xpos + 1; x++) {
if( x >= 0 && x < width && y >= 0 && y < height )
pixels.add(original.getPixel(x, y));
}
}
return new Color(avgRed(pixels), avgGreen(pixels), avgBlue(pixels));
}
/**
* @param pixels The list of pixels.
* @return The average of all the red values in the given list of pixels.
*/
private int avgRed(List<Color> pixels)
{
int total = 0;
for(Color color : pixels) {
total += color.getRed();
}
return total / pixels.size();
}
/**
* @param pixels The list of pixels.
* @return The average of all the green values in the given list of pixels.
*/
private int avgGreen(List<Color> pixels)
{
int total = 0;
for(Color color : pixels) {
total += color.getGreen();
}
return total / pixels.size();
}
/**
* @param pixels The list of pixels.
* @return The average of all the blue values in the given list of pixels.
*/
private int avgBlue(List<Color> pixels)
{
int total = 0;
for(Color color : pixels) {
total += color.getBlue();
}
return total / pixels.size();
}
}

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Semester 1/Programming 1/Java/examples/projects/chapter13/imageviewer-final/SolarizeFilter.ctxt Executable file
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#BlueJ class context
comment0.params=name
comment0.target=SolarizeFilter(java.lang.String)
comment0.text=\n\ Constructor\ for\ objects\ of\ class\ Solarize.\n\ @param\ name\ The\ name\ of\ the\ filter.\n
numComments=1

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Semester 1/Programming 1/Java/examples/projects/chapter13/imageviewer-final/SolarizeFilter.java Executable file
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import java.awt.Color;
/**
* An image filter to create a solarization effect.
*
* @author Michael Kölling and David J. Barnes.
* @version 1.0
*/
public class SolarizeFilter extends Filter
{
/**
* Constructor for objects of class Solarize.
* @param name The name of the filter.
*/
public SolarizeFilter(String name)
{
super(name);
}
/**
* Apply this filter to an image.
*
* @param image The image to be changed by this filter.
*/
public void apply(OFImage image)
{
int height = image.getHeight();
int width = image.getWidth();
for(int y = 0; y < height; y++) {
for(int x = 0; x < width; x++) {
Color pix = image.getPixel(x, y);
int red = pix.getRed();
if(red <= 127) {
red = 255 - red;
}
int green = pix.getGreen();
if(green <= 127) {
green = 255 - green;
}
int blue = pix.getBlue();
if(blue <= 127) {
blue = 255 - blue;
}
image.setPixel(x, y, new Color(red, green, blue));
}
}
}
}

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Semester 1/Programming 1/Java/examples/projects/chapter13/imageviewer-final/ThresholdFilter.ctxt Executable file
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#BlueJ class context
comment0.params=name
comment0.target=ThresholdFilter(java.lang.String)
comment0.text=\n\ Constructor\ for\ objects\ of\ class\ ThresholdFilter.\n\ @param\ name\ The\ name\ of\ the\ filter.\n
numComments=1

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Semester 1/Programming 1/Java/examples/projects/chapter13/imageviewer-final/ThresholdFilter.java Executable file
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import java.awt.Color;
/**
* An three-level gray-based threshold filter.
*
* @author Michael Kölling and David J. Barnes.
* @version 1.0
*/
public class ThresholdFilter extends Filter
{
/**
* Constructor for objects of class ThresholdFilter.
* @param name The name of the filter.
*/
public ThresholdFilter(String name)
{
super(name);
}
/**
* Apply this filter to an image.
*
* @param image The image to be changed by this filter.
*/
public void apply(OFImage image)
{
int height = image.getHeight();
int width = image.getWidth();
for(int y = 0; y < height; y++) {
for(int x = 0; x < width; x++) {
Color pixel = image.getPixel(x, y);
int brightness = (pixel.getRed() + pixel.getBlue() + pixel.getGreen()) / 3;
if(brightness <= 85) {
image.setPixel(x, y, Color.BLACK);
}
else if(brightness <= 170) {
image.setPixel(x, y, Color.GRAY);
}
else {
image.setPixel(x, y, Color.WHITE);
}
}
}
}
}

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Semester 1/Programming 1/Java/examples/projects/chapter13/imageviewer-final/package.bluej Executable file
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#BlueJ package file
dependency1.from=EdgeFilter
dependency1.to=OFImage
dependency1.type=UsesDependency
dependency10.from=ImageViewer
dependency10.to=LighterFilter
dependency10.type=UsesDependency
dependency11.from=ImageViewer
dependency11.to=SolarizeFilter
dependency11.type=UsesDependency
dependency12.from=ImageViewer
dependency12.to=MirrorFilter
dependency12.type=UsesDependency
dependency13.from=ImageViewer
dependency13.to=ThresholdFilter
dependency13.type=UsesDependency
dependency14.from=ImageViewer
dependency14.to=FishEyeFilter
dependency14.type=UsesDependency
dependency15.from=ImageViewer
dependency15.to=Filter
dependency15.type=UsesDependency
dependency16.from=ImageViewer
dependency16.to=InvertFilter
dependency16.type=UsesDependency
dependency17.from=SolarizeFilter
dependency17.to=OFImage
dependency17.type=UsesDependency
dependency18.from=LighterFilter
dependency18.to=OFImage
dependency18.type=UsesDependency
dependency19.from=DarkerFilter
dependency19.to=OFImage
dependency19.type=UsesDependency
dependency2.from=SmoothFilter
dependency2.to=OFImage
dependency2.type=UsesDependency
dependency20.from=PixelizeFilter
dependency20.to=OFImage
dependency20.type=UsesDependency
dependency21.from=MirrorFilter
dependency21.to=OFImage
dependency21.type=UsesDependency
dependency22.from=ThresholdFilter
dependency22.to=OFImage
dependency22.type=UsesDependency
dependency23.from=ImagePanel
dependency23.to=OFImage
dependency23.type=UsesDependency
dependency24.from=FishEyeFilter
dependency24.to=OFImage
dependency24.type=UsesDependency
dependency25.from=Filter
dependency25.to=OFImage
dependency25.type=UsesDependency
dependency26.from=InvertFilter
dependency26.to=OFImage
dependency26.type=UsesDependency
dependency27.from=GrayScaleFilter
dependency27.to=OFImage
dependency27.type=UsesDependency
dependency28.from=ImageFileManager
dependency28.to=OFImage
dependency28.type=UsesDependency
dependency29.from=ImageViewer
dependency29.to=ImageFileManager
dependency29.type=UsesDependency
dependency3.from=ImageViewer
dependency3.to=SmoothFilter
dependency3.type=UsesDependency
dependency4.from=ImageViewer
dependency4.to=DarkerFilter
dependency4.type=UsesDependency
dependency5.from=ImageViewer
dependency5.to=PixelizeFilter
dependency5.type=UsesDependency
dependency6.from=ImageViewer
dependency6.to=OFImage
dependency6.type=UsesDependency
dependency7.from=ImageViewer
dependency7.to=ImagePanel
dependency7.type=UsesDependency
dependency8.from=ImageViewer
dependency8.to=GrayScaleFilter
dependency8.type=UsesDependency
dependency9.from=ImageViewer
dependency9.to=EdgeFilter
dependency9.type=UsesDependency
objectbench.height=76
objectbench.width=1074
package.editor.height=636
package.editor.width=966
package.editor.x=70
package.editor.y=80
package.numDependencies=29
package.numTargets=16
package.showExtends=true
package.showUses=true
project.charset=UTF-8
readme.editor.height=642
readme.editor.width=871
readme.editor.x=41
readme.editor.y=67
target1.editor.height=731
target1.editor.width=850
target1.editor.x=50
target1.editor.y=60
target1.height=60
target1.name=SolarizeFilter
target1.naviview.expanded=true
target1.showInterface=false
target1.type=ClassTarget
target1.typeParameters=
target1.width=110
target1.x=780
target1.y=190
target10.editor.height=734
target10.editor.width=889
target10.editor.x=50
target10.editor.y=60
target10.height=60
target10.name=Filter
target10.naviview.expanded=true
target10.showInterface=false
target10.type=AbstractTarget
target10.typeParameters=
target10.width=100
target10.x=600
target10.y=260
target11.editor.height=730
target11.editor.width=976
target11.editor.x=50
target11.editor.y=60
target11.height=60
target11.name=EdgeFilter
target11.naviview.expanded=true
target11.showInterface=false
target11.type=ClassTarget
target11.typeParameters=
target11.width=90
target11.x=450
target11.y=120
target12.editor.height=731
target12.editor.width=890
target12.editor.x=50
target12.editor.y=60
target12.height=60
target12.name=FishEyeFilter
target12.naviview.expanded=true
target12.showInterface=false
target12.type=ClassTarget
target12.typeParameters=
target12.width=100
target12.x=550
target12.y=120
target13.editor.height=730
target13.editor.width=869
target13.editor.x=50
target13.editor.y=60
target13.height=60
target13.name=MirrorFilter
target13.naviview.expanded=true
target13.showInterface=false
target13.type=ClassTarget
target13.typeParameters=
target13.width=110
target13.x=780
target13.y=260
target14.editor.height=699
target14.editor.width=1004
target14.editor.x=41
target14.editor.y=23
target14.height=60
target14.name=ImageViewer
target14.naviview.expanded=true
target14.showInterface=false
target14.type=ClassTarget
target14.typeParameters=
target14.width=130
target14.x=230
target14.y=30
target15.editor.height=724
target15.editor.width=877
target15.editor.x=50
target15.editor.y=60
target15.height=60
target15.name=SmoothFilter
target15.naviview.expanded=true
target15.showInterface=false
target15.type=ClassTarget
target15.typeParameters=
target15.width=110
target15.x=780
target15.y=330
target16.editor.height=728
target16.editor.width=885
target16.editor.x=50
target16.editor.y=60
target16.height=60
target16.name=ImagePanel
target16.naviview.expanded=true
target16.showInterface=false
target16.type=ClassTarget
target16.typeParameters=
target16.width=140
target16.x=60
target16.y=270
target2.editor.height=720
target2.editor.width=946
target2.editor.x=50
target2.editor.y=60
target2.height=60
target2.name=ThresholdFilter
target2.naviview.expanded=true
target2.showInterface=false
target2.type=ClassTarget
target2.typeParameters=
target2.width=120
target2.x=650
target2.y=400
target3.editor.height=728
target3.editor.width=858
target3.editor.x=50
target3.editor.y=60
target3.height=60
target3.name=InvertFilter
target3.naviview.expanded=true
target3.showInterface=false
target3.type=ClassTarget
target3.typeParameters=
target3.width=110
target3.x=780
target3.y=400
target4.editor.height=732
target4.editor.width=895
target4.editor.x=50
target4.editor.y=60
target4.height=60
target4.name=GrayScaleFilter
target4.naviview.expanded=true
target4.showInterface=false
target4.type=ClassTarget
target4.typeParameters=
target4.width=110
target4.x=660
target4.y=120
target5.editor.height=731
target5.editor.width=858
target5.editor.x=50
target5.editor.y=60
target5.height=60
target5.name=DarkerFilter
target5.naviview.expanded=true
target5.showInterface=false
target5.type=ClassTarget
target5.typeParameters=
target5.width=100
target5.x=430
target5.y=400
target6.editor.height=729
target6.editor.width=878
target6.editor.x=50
target6.editor.y=60
target6.height=60
target6.name=PixelizeFilter
target6.naviview.expanded=true
target6.showInterface=false
target6.type=ClassTarget
target6.typeParameters=
target6.width=110
target6.x=780
target6.y=120
target7.editor.height=737
target7.editor.width=846
target7.editor.x=50
target7.editor.y=60
target7.height=60
target7.name=ImageFileManager
target7.naviview.expanded=true
target7.showInterface=false
target7.type=ClassTarget
target7.typeParameters=
target7.width=140
target7.x=60
target7.y=190
target8.editor.height=718
target8.editor.width=872
target8.editor.x=50
target8.editor.y=60
target8.height=60
target8.name=LighterFilter
target8.naviview.expanded=true
target8.showInterface=false
target8.type=ClassTarget
target8.typeParameters=
target8.width=100
target8.x=540
target8.y=400
target9.editor.height=700
target9.editor.width=863
target9.editor.x=0
target9.editor.y=22
target9.height=90
target9.name=OFImage
target9.naviview.expanded=true
target9.showInterface=false
target9.type=ClassTarget
target9.typeParameters=
target9.width=110
target9.x=90
target9.y=510