User`s guide

5-54 Microtek ScanWizard 5 User's Guide (Macintosh version)
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 lighten-
ing pixels next to the hard edges of defined
lines and shaded areas.
• Blur More produces an effect three or four
times stronger than Blur.
Sharpen filters
The Sharpen filters do the opposite of the Blur
filters and increase the contrast of adjacent
pixels, making images appear sharper and more
focused.
Both Sharpen and Sharpen More filters improve
clarity, with the Sharpen More filter having a
stronger sharpening effect than the Sharpen
filter.
Edge Enhancement filter
The Edge Enhancement filter gives greater
contrast to edges. The filter can do this because
edges are areas in an image where gray or color
levels change abruptly. It is best to use this tool
for improving geometrical contoured shapes.
Emboss filter
The Emboss filter makes a selection appear
raised or stamped by suppressing the color
within the selection and then tracing its edges
with black.
Original
Blur
Blur More
Original Sharpen
Sharpen More
Original
Edge Enhancement
Original Emboss