Gaussian Blur Filter - Microtek ArtixScan 4500t Reference Manual

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 Filters menu.
This parameter allows you to
specify a tolerance range or a
field of contrast between
adjacent pixels before blurring
is applied. Blurring is applied
only when pixel differences
are below the Threshold value.
The smaller the Threshold
value, the weaker the blurring
effect.
108 Microtek ScanWizard Pro for Macintosh
Original Gaussian Blur 3x3 mask size
This parameter specifies the
degree of the filter's effect. The
higher the value, the stronger the
blurring effect of the filter.
This parameter
determines the depth of
the surrounding pixels
that will be affected. The
larger the mask size, the
stronger the blurring
effect of the filter.
Gaussian Blur 5x5 mask size