This document defines a Java class called "seg" that performs segmentation on document images. It contains arrays to store line, word, character and other information extracted during segmentation. Methods like wordseg(), lineseg(), hline(), ccharseg() and tcharseg() are defined to segment words, lines, characters from the image based on vertical and horizontal histograms and populate the arrays.

1. public class seg
{
final int LINES = 100;
final int WORDS = 100;
final int CHARS = 100;
int line[]=new int[LINES];
int wordarr[][] = new int[LINES][WORDS];
int carr[][][]=new int[LINES][WORDS][CHARS];
int tarr[][][]=new int[LINES][WORDS][CHARS];
int larr[][][]=new int[LINES][WORDS][CHARS];
seg()
{
for(int i = 0; i < LINES; i++)
{
line[i] = -1;
for(int j = 0; j < WORDS; j++)
{
wordarr[i][j] = -1;
for(int k = 0; k < CHARS; k++)
{
carr[i][j][k] = -1;

2. tarr[i][j][k] = -1;
larr[i][j][k] = -1;
}
}
}
}
public int wordseg(int lineno, int w, int h, int vHisto[])
{
int m=0;
int t = 0;
while(t<w)
{
while(t < w && vHisto[t] == 0 )
t++;
if ( t >= w )
break;
wordarr[lineno][m] = t;
//System.out.println("t=" + t + "m= " + m + " " + vHisto[t]);
m++;
while(t < w && vHisto[t] > 0 )
t++;

3. if ( t >= w )
break;
wordarr[lineno][m] = t;
//System.out.println("t=" + t + "m= " + m + " " + vHisto[t]);
m++;
}
wordarr[lineno][m] = -1;
return m;
}
public int lineseg(int w, int h, int hHisto[])
{
int m=0;
int t = 0;
while(t<=h)
{
while(t < h && hHisto[t] == 0 )
t++;
if ( t >= h )
break;
//System.out.println("t=" + t + "m= " + m + " " + hHisto[t]);
line[m] = t;
m++;
while(t < h && hHisto[t] > 0 )
t++;

4. if ( t >= h )
break;
line[m] = t;
//System.out.println("t=" + t + "m= " + m + " " + hHisto[t]);
m++;
}
line[m] =-1;
return m;
}
public int hline(int ln, int wn, int w, int h, int hHisto[])
{
if(wordarr[ln][2*wn] ==-1 )
{
carr[ln][wn][0]=-1;
return -1;
}
int hlinepos=0;
int max=0;
//PixelGrabber pg = new PixelGrabber (img,ss[ln][0],line[0],w,h,pixels,0,w);
for(int m=0;m<h;m++)
if(hHisto[m]>=max)
{

5. //System.out.println(m + " " + hHisto[m]);
hlinepos=m;
max=hHisto[m];
}
if(hlinepos >= 20 || hlinepos <9)
{
//carr[ln][wn][0]=-1;
hlinepos=11;
}
return hlinepos;
}
public void ccharseg(int ln, int wn, int w, int h, int vHisto[])
{ //System.out.println("hlinepos "+hlinepos);
int m=0;
int t = 0;
while(t<w)
{
while(t < w && vHisto[t] == 0 )
t++;
if ( t >= w )
break;
carr[ln][wn][m] = t-1 + wordarr[ln][2*wn];
m++;

6. while(t < w && vHisto[t] > 0 )
t++;
if ( t >= w )
carr[ln][wn][m] = w-1+wordarr[ln][2*wn];
else
carr[ln][wn][m] = t-1 + wordarr[ln][2*wn];
m++;
}
carr[ln][wn][m] = -1;
} //System.out.println(ln + " " + wn + " " + m);
//for(int i = 0; i <m ; i++)
//System.out.println(carr[ln][wn][i]);
public void tcharseg(int ln, int wn, int w, int h, int vHisto[])
{ //System.out.println("hlinepos "+hlinepos);
int m=0;
int t = 0;
while(t<w)
{
while(t < w && vHisto[t] == 0 )
t++;
if ( t >= w )
break;
tarr[ln][wn][m] = t-1 + wordarr[ln][2*wn];
m++;

7. while(t < w && vHisto[t] > 0 )
t++;
if ( t >= w )
tarr[ln][wn][m] = w-1+wordarr[ln][2*wn];
else
tarr[ln][wn][m] = t-1 + wordarr[ln][2*wn];
m++;
}
tarr[ln][wn][m] = -1;
}//tchar
}