Microtek ScanMaker 6100 Pro, User Manual

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Before After (Sharpen High)
Unsharp Masking filter
The Unsharp masking filter is used to adjust the contrast of edge
detail, creating the illusion of more image sharpness. This filter can
be useful for refocusing an image that has become blurry from
interpolation or scanning, and it is an essential tool for doing CMYK
color separation. In general, Unsharp masking is needed to render
sharp color reproductions, especially when you wish to make a large
color reproduction from a small original.
Before After 7x7 After 13x13
Using the Unsharp Masking filter:
For Windows:
From the settings window, click the Filter tool button, then choose
Unsharp Masking from the list of options.
For Mac:
From the Settings window, choose Unsharp Masking from the Filters
list of options.
1. Click the Filter tool button to open the AIC window.
2. The Unsharp Masking dialog box appears.
3. Enter a value in the Strength box to specify the degree of the
filter’s effect. The higher the value, the stronger the effect of
the filter.