User's Manual

RTR-4 Operator’s Manual System Operation
120300 Rev. D SAIC Proprietary 4-37
Sharpen Select this command to sharpen an
image.
• Fine slightly sharpens the image,
use for subtle adjustments.
• Moderate improves image clarity
without significantly increasing the
image noise level.
• Extreme dramatically increase the
sharpness of the image, but increases
the noise, producing a “grainy” effect.
Smooth Select this command to soften the lines,
edges, and noise in an image. Using this
function will slightly reduce the image
resolution.
• Fine slightly smooths noise, edges
and lines and is used for subtle
adjustment.
• Moderate smooths the image to a
higher degree.
• Extreme causes more smoothing, for
noisier images or more subtly
changing areas of interest.
Noise Reduction Select this command to filter out pixels
with randomly distributed brightness or
color levels.
• Average replaces the center pixel of
a three-by-three array with the
average of those nine pixels.
• Median replaces the center pixel of
the three-by-three array with the
median value of those nine pixels
• Despeckle removes one-pixel
speckles (white dots) from the image
and shrinks some larger speckles.
COMMAND DESCRIPTION