Setting Thresholds - Dalsa PC-30-02K80-R Manual

Piranha Color Camera User's Manual
Syntax Elements:
Notes:
Example:
Table 7: End-of-Line Sequence Description
Location
1
2
3
4
5
6
7
8
9
10
11
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Setting Thresholds

Setting an Upper Threshold
Purpose:
Syntax:
Syntax Elements:
Notes:
DALSA
i
0 Disable end-of-line sequence
1 Enable end-of-line sequence, LVAL is not high for
end-of-line statistics.
2 LVAL high for video and end-of-line statistics
els 1
Value
AA
16
55
16
AA
16
4 bit counter LSB justified
Line sum (7...0)
Line sum (15...8)
Line sum (23...16)
Line sum (31...24)
Pixels above threshold (7...0)
Pixels above threshold
(15...8)
Pixels below threshold (7...0)
Pixels below threshold
(15...8)
Differential line sum (7..0)
Differential line sum (15...8)
Differential line sum (23...16)
Differential line sum (31...24)
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.
You must first select the color or colors you want to adjust using
the scl command.
RGB: all outputs
R: red output
G: green output
B: blue output
To change just the white (luminance) value, first change all
03-032-10211-03
Description
By ensuring these values consistently
toggle between AA and 55
16
verify cabling (i.e. no stuck bits)
Counter increments by 1. Use this value
to verify that every line is output
Use these values to help calculate line
average and gain
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)
Use these values to focus the camera.
Generally, the greater the sum the greater
the image contrast and better the focus.
60
, you can
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9/27/2007