11.0
Table Of Contents
- Introducing ABBYY FineReader
- The ABBYY FineReader 11 Interface
- Working with ABBYY FineReader
- ABBYY FineReader Tasks
- Managing Automated Tasks
- ABBYY FineReader Step–by–Step
- Splitting an ABBYY FineReader Document
- Taking Into Account Some of the Features of Your Paper Document
- Image Acquisition Tips
- Scanning Tips
- Taking Photos of Documents
- Camera Requirements
- Lighting
- Taking Photos
- When you need to take another photo
- Automatic Image Preprocessing
- Editing Images Manually
- OCR Options
- If the complex structure of a paper document is not reproduced in the electronic document
- Adjusting Area Shapes and Area Borders
- Picture Not Detected
- Barcode Not Detected
- Table Not Detected
- Table Cells Detected Incorrectly
- Adjusting Text Area Properties
- Vertical or Inverted Text Not Recognized Properly
- Paper Document Contains Decorative (Non–Standard) Fonts
- Incorrect Font in Recognized Text or Some Characters Are Replaced with "?" or "□"
- Checking and Editing the Recognized Text
- Working with Complex–Script Languages
- Recommended Fonts
- Saving the Results
- Advanced Features
- Appendix
- Font
- Language
- How to Buy an ABBYY Product
- Activating and Registering ABBYY FineReader
- Technical Support
ABBYY FineReader 11 User’s Guide
35
Source image
Recommended resolution
300 dpi for typical texts (printed in fonts of size 10pt or larger)
400–600 dpi for texts printed in smaller fonts (9pt or smaller)
Adjusting Image Resolution
OCR quality is affected by the resolution at which documents are scanned. Low resolutions may
adversely affect the quality of OCR.
We recommend scanning documents at 300 dpi.
Important! For best OCR results, vertical and horizontal resolutions must be the same.
Setting the resolution too high (over 600 dpi) increases the recognition time. Increasing the
resolution does not yield substantially improved recognition results. Setting an extremely low
resolution (less than 150 dpi) adversely affects OCR quality.
You may need to adjust the resolution of your images if:
• The resolution of your image is less than 250 dpi or higher than 600 dpi.
• The resolution of your image is non–standard.
For example, faxes may have a resolution of 204 x 96 dpi.
To adjust the resolution:
1. Click the Scan button.
2. Depending on the scanning interface used, the ABBYY FineReader interface or the scanner driver
interface will appear.
Choose the desired resolution in the scanning dialog box.
3. Scan the document.
Tip. You can also adjust the resolution in the Image Editor (Page>Edit Page Image…).
Scanning Facing Pages
When scanning facing pages from a book, both pages will appear in a single image.