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57413
8/16/03
11:50 PM
Adjusting Image, Focusing, Auto-Exposure
SETUP Screen (#2)
After placing the target object within the sensor's field of view, use this screen to adjust where the
image appears within the array, to focus the lens, and to lighten or darken the image.
While this screen is displayed, the controller continuously updates the image and runs the auto-
exposure routine to set the optimal exposure time, sensor gain, and gray-scale thresholds. These
values may be viewed and thresholds adjusted on the IMAGE CONTROL screen (#3.4) (see page
16).
Use
LIGHTEN
and
DARKEN
represent 15 steps of gray between the darkest and lightest pixels in the image.
➡ To achieve optimal focus, turn the lens focus ring in small increments until the displayed
value is the highest possible number. Remove your hand from the lens after each adjustment.
The value indicates the amount of contrast in the image. Higher numbers are achieved when
sensing images with greater contrast between light and dark areas.
➡ To lighten the image, select
within a range of -7 to +7.
➡ To darken the image, select
within a range of +7 to -7.
RESET
This option is displayed only if an ROI or mask has been previously defined.
➡ To clear a previously drawn ROI or MASK, select
➡ To exit the screen, select
START
option, select
NEXT
Banner Engineering Corp. • Minneapolis, MN
www.bannerengineering.com • Tel: 763.544.3164
Page 11
options to adjust the lower gray scale threshold. Values between -7 and 7
LIGHTEN
. Each time you press
ENTER
DARKEN
. Each time you press
ENTER
RESET
and press
DONE
and press
. If this screen was accessed from the
ENTER
and press
to continue.
ENTER
U.S.A.
Focus
, the value is increased by 1
, the value is decreased by 1
ENTER
.
QUICK
SETUP
Focus
101
LIGHTEN
0
DARKEN
DONE
SETUP Screen (#2)
For more information about gray scale
thresholds, see
Appendix B: Gray-Scale
Thresholds
on page 33.
SETUP
MAIN MENU (#1)
QUICK START
SETUP
SETUP (#2)
Focus
LIGHTEN
DARKEN
DONE
ROI
TEACH
RUN
CONFIGURE
P/N 57413
SETUP
11
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