ScanSoft Pro 12 ScanSoft Guide de l'utilisateur télécharger pdf (Page 52)

52 Processing documents

Brightness and contrast

Good brightness and contrast settings play an important role in OCR

accuracy. Set these in the Scanner panel of the Options dialog box or in

your scanner’s interface. The diagram illustrates an optimum brightness

setting. After loading an image, check its appearance. If characters are

thick and touching, lighten the brightness. If characters are thin and

broken, darken it. Then rescan the page.

Scanning with an ADF

The best way to scan multi-page documents is with an Automatic

Document Feeder (ADF). Simply load pages in the correct order into the

ADF. Place blank pages if you want to save your document to multiple

output files using the Create a new file at each blank page option. See

“Saving recognition results” on page 81.

If you have a document longer than the capacity of your ADF, select

Automatically prompt for more pages in the Process panel of the Options

dialog box. Then a dialog box lets you add further page batches and

signal when all pages are scanned.

Unsuitable

Tolerable

Good

Best

Good

Tolerable

Unsuitable

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ScanSoft Pro 12 ScanSoft Guide de l'utilisateur Page 52