8.0

ABBYY FineReader 8.0 User’s Guide
10
Click the arrow at the right of the Scan&Read button and select the Scan&Read item in the
local menu.
ABBYY FineReader will scan and read the images. The scanned image will appear in the Image window and the recognition results will
be displayed in the Te xt window of the main window.
Setting Scanning Parameters
Recognition quality depends greatly on the quality of the scanned image. You can improve the image quality by altering the main
scanning parameters: resolution, scan mode and brightness.
The main scanning parameters are:
● Resolution – use 300 dpi resolution for regular texts (font size 10 pts or greater) and 400–600 dpi resolution for
texts set in smaller font sizes (9 pts or less).
● Scan mode – gray.
Scanning in grayscale mode is best for recognition purposes. During grayscale scanning, brightness is adjusted
automatically.
● Scan mode – black and white.
Black and white scanning maximizes scanning speed but may result in the loss of some character information.
This may lower recognition quality in documents of medium and low print quality.
● Scan mode – color.
Select this mode for documents that contain pictures, colored text or colored backgrounds, so that you can retain
the original colors. In all other cases, gray scan mode is preferable.
● Brightness – a medium brightness value of around 50% should suffice in most cases.
Some documents scanned in black and white mode may require additional brightness tuning.
Note: Scanning at 400 to 600 dpi resolution (instead of the default 300 dpi) or scanning in grayscale or color
(instead of black & white) mode takes more time. Some scanners may take up to four times longer to scan at 600
dpi than 300 dpi.
To set scanning parameters:
● To scan images using the ABBYY FineReader TWAIN interface, click the Scanner Settings button on the
Scan/Open tab in the Options dialog (menu Too ls>Options). The Scanner Settings dialog will open. Select
the appropriate scanning options from the dialog.
● If you wish to scan your images using the TWAIN–Source interface, your scanner's TWAIN dialog will open
automatically when you click the 1–Scan button. Set the scanning parameters in the dialogue. Scanning options
may have different names depending on the scanner model. For example, for brightness the word "threshold", a
"sun" symbol or a black and white circle may be used. Consult your scanner documentation for a full description
of available options.
Tips on Brightness Tuning
To be recognized, a scanned image must be legible. Check the legibility of the image in the Zoom window.
– an example of an image that is appropriate for OCR
If you see that the scanned image is compromised (characters are glued or torn), consult the table below to find ways to improve
image quality.
Your image looks like this: Possible remedy:
characters are "torn" or very light
● Lower the brightness (to make the image darker).
● Scan in gray mode (to activate brightness autotuning).
characters are distorted, glued, or filled
● Increase the brightness (to make the image brighter).
● Scan in gray mode (to activate brightness autotuning).