The Halftone Sheet - Canon CanoScan D660U User Manual

chapter 4
What is on the
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The Halftone Sheet

The Halftone sheet is displayed only when Black and White or Text
Enhanced(OCR) has been selected for the Color Mode on the Advanced
Mode Main window.
• If you selected Text Enhanced(OCR), you cannot make
any changes on this sheet.
• You can set only Threshold in this sheet.
Note
Halftoning
Threshold
Threshold determines whether portions of an original are scanned as
black or white. Drag the slider left to make the image lighter or drag
it right to make the image darker. Or you can also enter a value ( 0 -
255) directly into the entry box to the right of the slider.
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