Image enhancement module

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The Document Processing Module

No restrictive modules.

• Do not remove: The pages remain unchanged.
• Remove: An attempt is made to detect and automatically remove white borders around the scanned image.

• Do not correct: The pages remain unchanged.
• Correct: An attempt is made to straighten the content of a page scanned at a slight angle. This function is always performed automatically during OCR recognition to improve the character recognition result.

• Off: The pages remain unchanged.
• On: An attempt is made to fill up the border pixels of lines, thereby slightly thickening the line. This function necessarily requires the b/w format (for grayscale or color the option is ignored).

• Off: The pages remain unchanged.
• On: An attempt is made to remove the border pixels from lines, thereby making the line slightly thinner. This function necessarily requires the b/w format (for grayscale or color the option is ignored).

• Do not remove: The pages remain unchanged.
• Remove: Blank pages are removed from the document. The paper must not be too dirty or creased, as the image processing system might detect this as desired page content.

• Do not remove: The pages remain unchanged.
• Remove: The margins of the sheet are replaced by white. This can remove the dark shadows that appear at the edges of the page during a book scan, for example. This function can only be used on white pages.

• Do not remove: The pages remain unchanged.
• Remove: Attempts are made to remove clearly visible remnants of punched holes scanned into the sheet margins, which are usually caused by shadows.

To get a better image enhancement result (e.g. when removing punch holes) the image can be inverted.

The inversion is done internally and is used purely for processing. The scan itself is then always output normally (i.e. not inverted). Try out which setting gives the best result for your scans.

• Auto: The system itself decides whether the processing is done with a normal or inverted image.
• Normal: The processing is done with a normal image.
• Inverse: The processing is done with an inverted image.

The pages of a scan can be rotated automatically or according to the setting.

• Auto: The system itself decides whether the image is to be rotated, e.g. to be able to display text in the correct orientation. This is decided individually for each page of a scan.
• No Rotation: No page of a scan is rotated.
• Right: All pages of a scan are rotated 90 degrees to the right, the former top is on the right in the scan.
• Bottom: All pages of a scan are rotated 180 degrees, the former top is at the bottom in the scan.
• Left: All pages of a scan are rotated 90 degrees to the left, the former top is on the left in the scan.

Pages can also be rotated already by device settings which, thereby influences the actual result.

The ImageService processes image data (e.g. from scans) and performs file format conversions, image optimization and the OCR function. It stores files in desired destination directories (depending on the module used, the rights of the user executing its application pool are used for this purpose). Its log file is Logs\ImageService.log.