RTR-4 Operator’s Manual
System Operation
120300 Rev. D
SAIC Proprietary
4-23
Using Histogram Equalization
Description
The
Histogram Equalize
command
moves the density scale of
an image slightly causing the lighter areas to darken slightly and
the darker areas to lighten slightly. Follow this procedure to
perform a
Histogram Equalize
.
Prerequisites
Verify the following prerequisites are completed before beginning
this procedure:
• The RTR-4 imaging software is on and software preferences
have been set.
• An image is displayed in the
Original
buffer.
Procedure RTR0023
Use Histogram Equalize as follows:
Image Preservation
The operator must be aware of the following regarding image
preservation:
• A newly acquired image is displayed in the
Original
buffer.
• A newly acquired image remains unchanged in the
Original
buffer until another image is acquired or a saved image is
opened with the
File Open
command while the
Original
buffer is active.
STEP
ACTION
1
Select
Histogram Equalize
from the
Modify
pull-down menu.
2
The equalized image appears in the
Modified
buffer.
NOTE
Histogram Equalize
only slightly affects an image.
More than one use is unlikely to produce any useful
results.
Use the
Ctrl+Z
key combination or click the
Undo
button
on the toolbar to undo. Also, you may
return to the
Original
buffer.
RTR0018b