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Newbie
Join Date: Feb 2005
Posts: 2
Rep Power: 0 
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Help with code please
Hi i have a large piece of code and i am trying to improve one part. The code looks at a scanned image and calculates how many lines are on the image and will section them off the the page is viewed.
But sometimes the lines are not sectioned i think it has something to do with the values i have put in for certain variables. Here is the part of the code which deals with this task (This is only part of the code and program if necessary i can attach the other code as a .zip file if you ask) Thank you for your time.
Mark
private static void splitTextArea(boolean leftPage) throws IOException
{
int left = 0,
right = 0 ;
if (leftPage)
{
left = textEdge ;
right = leftEdge + cropWidth ;
}
else
{
left = leftEdge ;
right = textEdge ;
}
int rowWidth = right - left ;
// int backcolour1 = 253 ;
int backcolour1 = 245,
max_light_lines = 4,
max_dark_lines = 8,
lightLineCounter = 0,
darkLineCounter = 0 ;
boolean inLightZone = true,
inTextZone = false ;
int lastY = topEdge,
descender_space = 3 ;
// PrintWriter pout2 = new PrintWriter(new FileWriter(outDirectory1 +
// File.separator + "xxx.txt")) ;
noOfRows = 0 ;JAVA
int clearance = 40 ;
for (int i = topEdge + clearance ; i < topEdge + cropHeight - clearance ; i++)
{
int colour = getRowColour(left, right, i) ;
// pout2.println(i + ", " + colour) ;
if (colour >= backcolour1)
{
lightLineCounter++ ;
darkLineCounter-- ;
}
else
{
darkLineCounter++ ;
lightLineCounter-- ;
}
if (lightLineCounter > max_light_lines)
lightLineCounter = max_light_lines ;
if (lightLineCounter < 0)
lightLineCounter = 0 ;
if (darkLineCounter > max_dark_lines)
darkLineCounter = max_dark_lines ;
if (darkLineCounter < 0)
darkLineCounter = 0 ;
if ((lightLineCounter == max_light_lines) && (inTextZone))
{
inLightZone = true ;
inTextZone = false ;
int line = noOfRows + 1 ;
int rowHeight = i + descender_space - lastY ;
// message("(" + left + ", " + lastY + ", " + rowWidth + ", " +
// rowHeight + ")") ;
pout1.println("(" + left + ", " + lastY + ", " + rowWidth +
", " + rowHeight + ")") ;
rows[noOfRows] = new IntegerQuad(left, lastY, rowWidth, rowHeight) ;
noOfRows++ ;
lastY = i + descender_space ;
}
else if ((darkLineCounter == max_dark_lines) && (inLightZone))
{
inLightZone = false ;
inTextZone = true ;
}
}
// pout2.close() ;
message("no of lines = " + noOfRows) ;
pout1.println("No of Lines = " + noOfRows) ;
pout1.println() ;
} // end of method splitTextArea
private static void splitGlossArea(boolean leftPage)
{
int left = 0,
right = 0 ;
if (leftPage)
{
left = leftEdge ;
right = textEdge ;
}
else
{
left = textEdge ;
right = leftEdge + cropWidth ;
}
int rowWidth = right - left ;
if (rowWidth == 0)
{
message("WARNING: no gloss area found") ;
noOfGlossRows = 0 ;
return ;
}
// int backcolour1 = 253,
int backcolour1 = 245,
max_light_lines = 20,
max_dark_lines = 10,
lightLineCounter = 0,
darkLineCounter = 0 ;
boolean inLightZone = true,
inTextZone = false ;
int lastY = topEdge,
descender_space = 17,
ascender_space = 20 ;
noOfGlossRows = 0 ;
int clearance = 40 ;
for (int i = topEdge + clearance ; i < topEdge + cropHeight - clearance ; i++)
{
int colour = getRowColour(left, right, i) ;
if (colour >= backcolour1)
{
lightLineCounter++ ;
darkLineCounter-- ;
}
else
{
darkLineCounter++ ;
lightLineCounter-- ;
}
if (lightLineCounter > max_light_lines)
lightLineCounter = max_light_lines ;
if (lightLineCounter < 0)
lightLineCounter = 0 ;
if (darkLineCounter > max_dark_lines)
darkLineCounter = max_dark_lines ;
if (darkLineCounter < 0)
darkLineCounter = 0 ;
if ((lightLineCounter == max_light_lines) && (inTextZone))
{
inLightZone = true ;
inTextZone = false ;
int line = noOfGlossRows + 1 ;
int rowHeight = i + descender_space - lastY ;
// message("(" + left + ", " + lastY + ", " + rowWidth + ", " +
// rowHeight + ")") ;
pout1.println("(" + left + ", " + lastY + ", " + rowWidth +
", " + rowHeight + ")") ;
glossRows[noOfGlossRows] = new IntegerQuad(left, lastY, rowWidth,
rowHeight) ;
noOfGlossRows++ ;
lastY = i + descender_space ;
}
else if ((darkLineCounter == max_dark_lines) && (inLightZone))
{
inLightZone = false ;
inTextZone = true ;
// this overrides other values of lastY,
// to eliminate gloss whitespace
lastY = i - max_dark_lines - ascender_space ;
}
}
message("no of glosses = " + noOfGlossRows) ;
pout1.println("No of Glosses = " + noOfGlossRows) ;
pout1.close() ;
} // end of method splitGlossArea |
Feb 9th, 2005, 10:36 AM
Linear Mode
