Spyder 3 Camera User's Manual GigE Dual Line - Frame Grabbers

Spyder 3 GigE User’s Manual
81
Location Value Description
9 Pixels above threshold (7…0)
10 Pixels above threshold
(15…8)
11 Pixels below threshold (7…0)
12 Pixels below threshold (15…8)
Monitor these values (either above or
below threshold) and adjust camera
digital gain and background subtract to
maximize scene contrast. This provides a
basis for automatic gain control (AGC)
13 Differential line sum (7..0)
14 Differential line sum (15…8)
15 Differential line sum (23…16)
Use these values to focus the camera.
Generally, the greater the sum the greater
the image contrast and better the focus.
16 Differential line sum (31…24)
Setting Thresholds
Setting an Upper Threshold
Purpose:
Syntax:
Syntax Elements:
Sets the upper threshold limit to report in the end-of-line
sequence.
sut i
i
Upper threshold limit in range from 0 to 4095.
Notes: • LVAL is not high during the end-of-line statistics.
Related Commands: • 106Hels,
107Hslt
Example: sut 1024
Setting a Lower Threshold
Purpose:
Syntax:
Syntax Elements:
Sets the lower threshold limit to report in the end-of-line
sequence.
slt i
i
Upper threshold limit in range from 0 to 4095.
Notes: • LVAL is not high during the end-of-line statistics.
Related Commands: • 108Hels,
109Hsut
Example: slt 1024
DALSA 03-032-10158-06