*/
//package com.allaya.imageprocessing;
import java.awt.* ;
import java.awt.image.*;
import javax.swing.* ;
public class DrawProjections extends JFrame
{
Image img ;
int h ;
int w ;
String s ;
int length = 0 ;
int maximum = 0 ;
int projections[] ;
int x = 10 ;
int y = 10 ;
int number = 0 ;
/*
*
* The constructor that takes an Image
*
*/
public DrawProjections( )
{
s = "Now in Projections";
}
public DrawProjections( int array[], int width, int height )
{
number = 1 ;
length = array.length ;
projections = new int[ length ] ;
w = width ;
h = height ;
set( projections );
setSize( 400, 300 );
show();
}
/*
*
* This method sets an Image on the canvas
*
*/
public void set( int array[] )
{
for( int i = 0 ; i < array.length ; i++ )
{
if( maximum < array[i] )
maximum = array[i];
}
repaint();
}
/*
*
* This method paints the Canvas
*
*/
public void paint( Graphics g )
{
setBackground ( Color.black ) ;
g.setColor( Color.red ) ;
if( number == 0 )
{
g.drawString( s, 50, 50 );
}
else
{
for( int i = 0 ; i < length ; i++,y++ )
{
int p = projections[i];
g.drawLine( x , y, x + p , y );
}
}
}
}
Class for Loading the Image
LoadedImage12.java
/*
* This class loads a resulting image.
* This class also provides the methods
* to display the XProjections and YProjections.
*
* @param img Contains the Image to be displayed
* @param yesImage A boolean value that represents whether there is an
* image to be displayed or not
* @param YProjections[] An Interger array that contains the total number
* of black pixels with respect to the rows
* @param XProjections[] An array containing total number of black pixels
* with respect to the columns
* @param x It initializes the x-coordinate
* @param y It intializes the y coordinate
* @param h Height of the image
* @param w Width fo the Image
* @param signal Used to determine whether YProjections or XProjections
is to be plotted
* @param maximumX The maximum Value within the XProjections
*
* @version j2sdk1.4.0
* @author Beenish Zaidi
* @date 9th Feburary 2005
*/
//package com.allaya.imageprocessing;
import java.awt.* ;
import java.awt.image.*;
public class LoadedImage12 extends Canvas
{
Image img ;
int h ;
int
w ;
/*
*
* The constructor that takes an Image
*
*/
public LoadedImage12( BufferedImage i )
{
set(i);
}
/*
*
* This method sets an Image on the canvas
*
*/
public void set( BufferedImage bi )
{
Image i = ( Image ) bi ;
MediaTracker mt = new MediaTracker( this );
mt.addImage( i, 0 );
try
{
mt.waitForAll();
}
catch( InterruptedException e )
{
}
img = i ;
repaint();
}
/*
*
* This method paints the Canvas
*
*/
public void paint( Graphics g )
{
setBackground ( Color.black ) ;
g.setColor( Color.red ) ;
/*
* If there is no iamge to be displayed
*/
if( img == null )
{
g.drawString( "No image", 10, 30 );
}
/*
* If there is image to be displayed
* then paint it
*/
else
{
g.drawImage(img, 0, 0, this );
}
}
/*
* This method returns the Dimension
*/
public Dimension getPreferredSize()
{
return new Dimension( img.getWidth( null) , img.getHeight ( null ));
}
public Dimension getMinimumSize()
{
return getPreferredSize();
}
}
The main handling class
MainDemo.java
/*
* Main Demo of Optical Music Recognition System
* @author Beenish Zaidi
* @date 9th February 2005
*/
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.awt.image.*;
public class MainDemo extends JFrame
implements ActionListener {
ImageOps ip1 ;
Binarization bin ;
BufferedImage image ;
LoadedImage12 lim ;
DrawProjections dp ;
YProjections yp ;
final JDesktopPane theDesktop ;
JInternalFrame frame ;
JMenu file ;
JMenu ipop ;
JMenuItem open ;
JMenuItem save ;
JMenuItem exit ;
JMenuItem yproj ;
JMenuItem binarize;
String name;
int width, height ;
BufferedImage b2 ;
JMenuBar bar ;
public MainDemo(){
super ( "Optical Music Recognition System" );
bar = new JMenuBar();
setJMenuBar ( bar ) ;
// Create a file Menu
file = new JMenu ( "File" );
file.setMnemonic ( 'F' );
// Items to be added in File menu
open = new JMenuItem ( "Open") ;
open.addActionListener ( this ) ;
save = new JMenuItem ( "Save") ;
save.addActionListener ( this ) ;
exit = new JMenuItem ( "Exit") ;
exit.addActionListener ( this ) ;
// Add the item to the file menu
file.add ( open ) ;
file.add ( save ) ;
file.add ( exit ) ;
ipop = new JMenu ( "Image Processing Operations" );
yproj = new JMenuItem ( "Y-Projections" );
yproj.addActionListener ( this );
binarize = new JMenuItem ( "Binarize");
ipop.add ( yproj ) ;
ipop.add ( binarize ) ;
bar.add ( file ) ;
bar.add ( ipop ) ;
theDesktop = new JDesktopPane();
getContentPane().add ( theDesktop );
setSize( 600 , 500 ) ;
show() ;
}
public void actionPerformed ( ActionEvent e ){
if ( e.getSource() == open ) {
// Open The file.
name = "1stave.png" ;
frame = new JInternalFrame ( "Loaded Image" ,true, true, true, true );
Container c = frame.getContentPane();
ip1 = new ImageOps( name ) ;
image = ip1.returnImage() ;
width = image.getWidth( null );
height = image.getHeight( null );
lim = new LoadedImage12 ( image ) ;
JPanel panel = new JPanel() ;
panel.add ( lim ) ;
c.add ( panel , BorderLayout.CENTER ) ;
frame.setSize ( image.getWidth(null) , image.getHeight (null) ) ;
theDesktop.add ( frame );
}
else if ( e.getSource() == save ) {
ip1.save( "amna.png" );
}
else if ( e.getSource() == exit ) {
System.exit( 0 ) ;
}
else if( e.getSource() == yproj ) {
bin = new Binarization( name );
b2 = bin.getImage();
yp = new YProjections ( b2 );
int projections[] = new int[ height ];
projections = yp.returnProjections();
dp = new DrawProjections ( projections ,width ,
height );
frame = new JInternalFrame ( "Loaded Image" ,true, true, true, true );
Container c = frame.getContentPane();
JPanel panel = new JPanel() ;
panel.add ( dp ) ;
c.add ( panel , BorderLayout.CENTER ) ;
frame.setSize ( image.getWidth(null) , image.getHeight (null) ) ;
theDesktop.add ( frame );
}
}
public static void main ( String args[] ) {
MainDemo md = new MainDemo () ;
md.setDefaultCloseOperation ( EXIT_ON_CLOSE ) ;
}
}
GuideLines to Compile the Code
Guide Lines
1- First Compile the Class ImageOps.java
2- Then Compile the class Binarization.java
3- Thirdly Compile the class YProjection.java
4- Compile the Class DrawProjections.java
5- Compile the Class LoadedImage12.java
6- Lastly Compile the Main class called MainDemo.java
