Gaussian Blur Filter - Microtek ScanMaker i700 User Manual

Filters
Blur filters
The Blur filters eliminate noise in the parts of the image where
significant color transitions occur. These filters decrease the contrast
between adjacent pixels, making the image appear hazy and out of
focus.
Blur smooths out the transitions by lightening pixels next to the
hard edges of defined lines and shaded areas.
Blur More produces an effect three or four times stronger than
Blur.
Before

Gaussian Blur filter

The Gaussian Blur is used to defocus an area of the image where
significant color transitions occur or where noise exists, and the filter
produces a hazy effect. "Gaussian" refers to the bell-shaped curve
that is generated when this filter adjusts the color values of the
affected pixels. The dialog box below appears when you choose
Gaussian Blur from the Filter menu.
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After