Adjusting Image Resolution
The Image Resolution indicates how detailed the image is. Resolution is normally measured in dpi (dots per inch).
The best resolution for OCR is 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:
- Click the Scan button.
- 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.
- Scan the document.
Tip. Resolution corrections are also possible via the Edit Image dialog box (Page>Edit Page Image…).