Filtro de laplace Hola tengo problemas con este programa que es aplicar el filtro de laplace a una imagen pero me marca un error y no se como arreglarlo espero me puedan ayudar
Son dos clases
Les dejo el main donde me marca el error y despues anexo la otra calse donde estan los constructores:
MAIN:
package laplacefilter2;
/**
*
* @author Alano
*/
/************************************************** ***********************
*
*
*
* Cargar una Imagen y aplicar el filtro de lapace
*
* [ -1 -1 -1 ]
* [ -1 8 -1 ]
* [ -1 -1 -1 ]
*
*
*
*
************************************************** ***********************/
import java.awt.Color;
public class LaplaceFilter2 {
public static void main(String[] args) {
Picture pic1 = new Picture(); // original <---------------AKI ME MARCA EL ERROR
Picture pic2 = new Picture(args[0]); // filtered
int width = pic1.width();
int height = pic1.height();
pic1.show();
pic2.show();
for (int y = 1; y < height - 1; y++) {
for (int x = 1; x < width - 1; x++) {
Color c00 = pic1.get(x-1, y-1);
Color c01 = pic1.get(x-1, y );
Color c02 = pic1.get(x-1, y+1);
Color c10 = pic1.get(x , y-1);
Color c11 = pic1.get(x , y );
Color c12 = pic1.get(x , y+1);
Color c20 = pic1.get(x+1, y-1);
Color c21 = pic1.get(x+1, y );
Color c22 = pic1.get(x+1, y+1);
int r = -c00.getRed() - c01.getRed() - c02.getRed() +
-c10.getRed() + 8*c11.getRed() - c12.getRed() +
-c20.getRed() - c21.getRed() - c22.getRed();
int g = -c00.getGreen() - c01.getGreen() - c02.getGreen() +
-c10.getGreen() + 8*c11.getGreen() - c12.getGreen() +
-c20.getGreen() - c21.getGreen() - c22.getGreen();
int b = -c00.getBlue() - c01.getBlue() - c02.getBlue() +
-c10.getBlue() + 8*c11.getBlue() - c12.getBlue() +
-c20.getBlue() - c21.getBlue() - c22.getBlue();
r = Math.min(255, Math.max(0, r));
g = Math.min(255, Math.max(0, g));
b = Math.min(255, Math.max(0, b));
Color c = new Color(r, g, b);
pic2.set(x, y, c);
}
}
pic2.show();
}
}
CLASE DE CONSTRUCTORES!!
package laplacefilter2;
import java.awt.Color;
import java.awt.FileDialog;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.net.URL;
import javax.imageio.ImageIO;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.KeyStroke;
public final class Picture implements ActionListener {
private BufferedImage image; // Imagen planificada
private JFrame frame; // En vista de pantalla
private String filename; // Nombre de archivo
private boolean isOriginUpperLeft = true; //Ubicacion de origen
private int width, height; // width and height
/**
* Create a blank w-by-h picture, where each pixel is black.
*/
public Picture(int w, int h) {
width = w;
height = h;
image = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);
// set to TYPE_INT_ARGB to support transparency
filename = w + "-por-" + h;
}
/**
* Create a picture by reading in a .png, .gif, or .jpg from
* the given filename or URL name.
*/
public Picture(String filename) {
this.filename = filename;
try {
// try to read from file in working directory
File file = new File(filename);
if (file.isFile()) {
image = ImageIO.read(file);
}
// now try to read from file in same directory as this .class file
else {
URL url = getClass().getResource(filename);
if (url == null) { url = new URL(filename); }
image = ImageIO.read(url);
}
width = image.getWidth(null);
height = image.getHeight(null);
}
catch (IOException e) {
// e.printStackTrace();
throw new RuntimeException("No se pudo abrir el archivo: " + filename);
}
}
/**
* Create a picture by reading in a .png, .gif, or .jpg from a File.
*/
public Picture(File file) {
try { image = ImageIO.read(file); }
catch (IOException e) {
e.printStackTrace();
throw new RuntimeException("No se pudo abrir el archivo: " + file);
}
if (image == null) {
throw new RuntimeException("Archivo invalido " + file);
}
}
/**
* Return a JLabel containing this Picture, for embedding in a JPanel,
* JFrame or other GUI widget.
*/
public JLabel getJLabel() {
if (image == null) { return null; } // no image available
ImageIcon icon = new ImageIcon(image);
return new JLabel(icon);
}
/**
* Set the origin to be the upper left pixel.
*/
public void setOriginUpperLeft() {
isOriginUpperLeft = true;
}
/**
* Set the origin to be the lower left pixel.
*/
public void setOriginLowerLeft() {
isOriginUpperLeft = false;
}
/**
* Display the picture in a window on the screen.
*/
public void show() {
// create the GUI for viewing the image if needed
if (frame == null) {
frame = new JFrame();
JMenuBar menuBar = new JMenuBar();
JMenu menu = new JMenu("File");
menuBar.add(menu);
JMenuItem menuItem1 = new JMenuItem(" Save... ");
menuItem1.addActionListener(this);
menuItem1.setAccelerator(KeyStroke.getKeyStroke(Ke yEvent.VK_S,
Toolkit.getDefaultToolkit().getMenuShortcutKeyMask ()));
menu.add(menuItem1);
frame.setJMenuBar(menuBar);
frame.setContentPane(getJLabel());
// f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_C LOSE);
frame.setTitle(filename);
frame.setResizable(false);
frame.pack();
frame.setVisible(true);
}
// draw
frame.repaint();
}
/**
* Return the height of the picture in pixels.
*/
public int height() {
return height;
}
/**
* Return the width of the picture in pixels.
*/
public int width() {
return width;
}
/**
* Return the color of pixel (i, j).
*/
public Color get(int i, int j) {
if (isOriginUpperLeft) return new Color(image.getRGB(i, j));
else return new Color(image.getRGB(i, height - j - 1));
}
/**
* Set the color of pixel (i, j) to c.
*/
public void set(int i, int j, Color c) {
if (c == null) { throw new RuntimeException("can't set Color to null"); }
if (isOriginUpperLeft) image.setRGB(i, j, c.getRGB());
else image.setRGB(i, height - j - 1, c.getRGB());
}
/**
* Is this Picture equal to obj?
*/
public boolean equals(Object obj) {
if (obj == this) return true;
if (obj == null) return false;
if (obj.getClass() != this.getClass()) return false;
Picture that = (Picture) obj;
if (this.width() != that.width()) return false;
if (this.height() != that.height()) return false;
for (int x = 0; x < width(); x++)
for (int y = 0; y < height(); y++)
if (!this.get(x, y).equals(that.get(x, y))) return false;
return true;
}
/**
* Save the picture to a file in a standard image format.
* The filetype must be .png or .jpg.
*/
public void save(String name) {
save(new File(name));
}
/**
* Save the picture to a file in a standard image format.
*/
public void save(File file) {
this.filename = file.getName();
if (frame != null) { frame.setTitle(filename); }
String suffix = filename.substring(filename.lastIndexOf('.') + 1);
suffix = suffix.toLowerCase();
if (suffix.equals("jpg") || suffix.equals("png")) {
try { ImageIO.write(image, suffix, file); }
catch (IOException e) { e.printStackTrace(); }
}
else {
System.out.println("Error: filename must end in .jpg or .png");
}
}
/**
* Opens a save dialog box when the user selects "Save As" from the menu.
*/
public void actionPerformed(ActionEvent e) {
FileDialog chooser = new FileDialog(frame,
"Use a .png or .jpg extension", FileDialog.SAVE);
chooser.setVisible(true);
if (chooser.getFile() != null) {
save(chooser.getDirectory() + File.separator + chooser.getFile());
}
}
}
ESPERO ME PUEDAN AYUDAR ESTA HECHO EN NETBEANS!!!!
