Canon CanoScan N650U User Manual page 39

chapter 4
What is on the
Screen?
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Glossary
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Index
Selection
Use the Selection options to set the exact size of the image output.
To select the area to scan, use the Crop button or Auto
Crop button or enter the desired dimensions in the text
box.
Note
• Keep Proportions button Click this button to maintain the Width
and Height proportions. If you change Width or Height, the other
setting will be adjusted automatically to maintain the proportion of
the original image. When this button is clicked, a chain appears
between the Width and Height boxes. As you enlarge or reduce the
selection, note that the Width and Height of the selection remain in
correct proportion.
• Units Click the down-arrow and select a unit to measure the
scanning area. Changing the Units setting does not affect the
image in the Preview Area.
• Width and Height The width and height of the current selection,
or if there is no selection, the maximum output size, measured from
the upper left corner of the image in the Preview Area and based
on the current paper size. To change the Width and Height settings,
click the Crop button on the toolbar and select a section of the
image in the preview area, or just type the desired dimensions into
the Width and Height text boxes.
• Scale Allows you to specify the image size after scanning 25% to
200% (preset to 100%) as a percentage of the specified scan area.
The resolution of the scanned image is kept to the specification so
that the resolution when scanning changes according to the setting
here.
•
•
Note
When the resolution is set to 4800, 7200 or 9600,
the Scale value is set to 100%.
Scale setting sets the scale for the image sent to
the parent software application and has no effect
on the image displayed in the preview area.
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