Epson DS-790WN User Manual page 169

Authentication Scanning
❏ Scan laminated card:
For laminated originals, transparent areas around the edges are also scanned.
Note:
The appropriate effects may not be achieved depending on the original.
Rotate:
Rotate the scanned image clockwise. Select the rotation angle depending on the original you want to
scan.
Density:
Select the contrast of the scanned image.
Remove Background:
Remove the background color of the originals from the scanned image.
To use this feature, the background color of the originals should be the lightest color in the originals,
and should be uniform. This feature is not applied correctly if there are patterns in the background,
or there are text or illustrations which are a lighter color than the background.
Text Enhancement:
Make blurred letters in the original clear and sharp.
❏ Edge Enhancement:
You can enhance the text edges (the border between the text and the background).
When you increase the value, the edges of thin text become black.
Decrease the value if there is too much noise in the scanned image.
❏ Threshold:
You can adjust the borderline for monochrome binary (black or white).
The black areas become larger when you increase the value, and the white areas become larger
when you decrease the value.
❏ Noise reduction level:
You can adjust the level of noise reduction (unnecessary black dots).
The higher the level, the more noise reduction is applied.
Remove Shadow:
Remove the shadows of the original that appear in the scanned image.
❏ Frame:
Remove the shadows at the edge of the original.
Correct Document Skew:
Correct skew in the scanned image.
This feature may not be able to correct documents that have been over skewed.
Skip Blank Pages:
Skip blank pages when scanning if there are any in the originals.
If the result is not what you expected, adjust detection level.
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Using Scan to My Folder
169
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Scanning Menu Options for Scan to My Folder