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Sharpening An Image - Canon CanoScan D646U User Manual

Canoscan d646u toolbox1.3 for mac guide
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3.
You can adjust the blue, red and yellow colors by moving the applicable slider to the left (to
decrease) or the right (to increase).
4.
You adjust the color balance for specific color groups (i.e., modify the blue tones in the
shadows of an image) by clicking on one of the radio buttons and then moving the Cyan
slider.
5.
Click OK when you are finished, or Reset to return to the default color balance settings.

Sharpening an Image

The CanoScan Toolbox Sharpen command has three options: A Little, A Lot and Unsharp
Masking.
To sharpen an image or a selected portion of an image:
1.
Open the image you want to sharpen using the Open Image command from the File menu, or
scan a new image by clicking on the Scan button.
2.
Click and hold the Sharpen command from the Image menu. Choose A Little from the
Sharpen submenu for a slight change, or choose A Lot for a significant change. The Sharpen
filter is automatically applied to the image.
Sharpened - A Little
To use the Unsharp Masking command:
1.
Open the image you want to sharpen using the Open Image command from the File menu, or
scan a new image by clicking on the Scan button.
2.
Click and hold the Sharpen command from the Image menu. Choose the Unsharp Masking
selection from the Sharpen submenu.
CanoScan Toolbox
Sharpened - A Lot
13

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