Canon PIXMA MG2525 All-in-One Inkjet Printer (Black) - Manual (Page 364)

Important
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.
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 Correction " for details.
• 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.
Important
The following types of documents may not be corrected properly since the text
cannot be detected correctly.
Documents in which the text lines are inclined more than 10 degrees or the
angles vary by line
Documents containing both vertical and horizontal text
Documents with extremely large or small fonts
Documents with small amount of text
Documents containing figures/images
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