TWAIN with Java question

I'm testing the Gnome 4.2 API and it works reasonable well, but, how can you tweak the parameters for better quality scans for b&w pages ?
I need to capture contracts (not for OCR, just the best snapshot I can get for database storage) in b&w.
I can get a fair job, but correction s/w for the HP ScanJet 5300c at the same 150dpi or 300dpi settings does a night and day better job at it than GNOME currently is (at least how I'm capturing currently).
I've tried setting the threshold, shadow, highlight, brighness, contrast, etc. but to no effect.
Here's the settings i've tried:
twain = new Twain();
// Turn off dialogs
twain.setSelectSource(false); // Pop up Select Source window - i.e. the scanner/camera on the PC
twain.setVisible(false); // Pop up Twain user interface.
twain.setPixelType(Twain.RGB);
twain.setThreshold(150);
twain.setShadow(100);
twain.setHighLight(100);
twain.setFeederEnabled(true);
twain.setAutoFeed(true);
twain.setAutoBrightness(true);
// twain.setBrightness(200);
// twain.setContrast(300);
// Quality settings
twain.setCurrentUnits(Twain.INCHES);
twain.setXResolution(dpi); // where dpi=100,150,300
twain.setYResolution(dpi);
// Default to the original size as scanned in.
twain.setXScaling(1.0);
twain.setYScaling(1.0);
twain.setExceptionMask(Twain.SETTHRESHOLD|Twain.SETHIGHLIGHT|Twain.SETSHADOW);
// Grab the image now
Image image = Toolkit.getDefaultToolkit().createImage(twain);
NOTE: At the end, I switch the Image to a JPEG (maximum quality) and storage this in the database. (Currently saving to the file system just to use tools to check the quality of the scan).

Hi ,
EVen I was trying to use the Gnome Twain package, but what di I need first on my machine, I dont have a scanner right now. Where do I get a driver for any TWAIN compliant scanner. I am not able to begin on this.
Thanx,
Rajeev

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RomDog wrote:
Is it similar to creating a site with vb.net and asp.net which utilizes html as well? Please explain. I am eager to learn this language. Thank you.
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I want to pass along a couple of tips that will get you more and better response on this list.
1) There is an un-written rule that says more "stars" is better than just one star. Giving a one star rating will probably eliminate that responder from individuals that are willing to anser your question.
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