Canon MG5500 series Online Manual page 47

Select this checkbox to sharpen text in a document or magazine for better
readability.
Important
Available only when the Compress scanned images upon transfer checkbox
is not selected.
The color tone may differ from the source image due to corrections. In that
case, deselect the checkbox and scan.
Note
Scanning takes longer than usual when you enable this function.
• Sharpen outline
Emphasizes the outline of the subjects to sharpen the image.
• Reduce show-through
Sharpens text in an item or reduces show-through in newspapers, etc.
• Reduce moire
Reduces moire patterns.
Printed materials are displayed as a collection of fine dots. "Moire" is a phenomenon
where uneven gradation or a stripe pattern appears when such photos or pictures
printed with fine dots are scanned.
Note
Scanning takes longer than usual when you enable Reduce moire.
• Reduce gutter shadow
Reduces gutter shadows that appear between pages when scanning open booklets.
Important
Available only when the Compress scanned images upon transfer checkbox
is not selected.
Note
Click Driver in the IJ Scan Utility main screen and scan to correct gutter
shadows when scanning non-standard size items or specified areas.
Refer to "Gutter
• Correct slanted text document
Detects the scanned text and corrects the angle (within -0.1 to -10 degrees or +0.1
to +10 degrees) of the document.
Correction" for details.
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