Dalsa PC-30-02K80-R, Руководство пользователя

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Piranha Color Camera User’s Manual 39
DALSA 03-032-10211-03 9/27/2007
CCF: calibrate FPN
CCP: calibrate PRNU
CPA: calibrate analog gain (SAG) and PRNU
PRNU calibration includes the FPN whether it is enabled or not (as they are linked). If
you do not want the PRNU calibration to include the effect of FPN then it should be
zeroed first using the RPC command.
CCG 3 (system gain) only includes FPN and PRNU if they are enabled with EPC.
Note: Refer to section 3.8 Set Color
Correction
Purpose: Sets the color correction coefficients.
Syntax:
scc Co C1 C2 C3
Syntax Elements:
Co = offset (0 to 4095)
C1 = red multiplier (-8192 to +8191)
C2 = green multiplier (-8192 to +8191)
C3 = blue multiplier (-8192 to +8191)
Note: Set coefficients used to combine three color streams, e.g.
White =
C
0
+ ( C
1
x Red) + ( C
2
x Green) + ( C
3
x Blue)
C
0
is a DN, whereas:
Coefficient = C
1-3
/ 4,096
Modified by set color command (SCL):
RGB: White
R|G|B: Red, Green, or Blue
All colors are not necessary because constructing white is
different
Factory (initial) values combine the three colors equally:
White = 0 + (0.33 x Red) + (0.33 x Green) + (0.33 x Blue)
C
n
= 0.33 x 4,096= 1,365
Red = 0 + (1 x Red) + (0 x Green) + (0 x Blue)
C
1
= 1 x 4,096= 4,096
Range of {-8,192 to +8,191} is equivalent to floating point
coefficients of {-2.0 to +1.999}
Step size is 0.000244
Values are saved with camera settings
Values may be viewed with GCP or GET SCC
Example: White = 100 + (0.25 x Red) + (-0.15 x Green) + (0.8 x Blue)
Therefore,
C1 = 0.25 x 4096 = 1024
C2 = (-0.15 x 4096) = -614
C3 = 0.8 x 4096 = 3276
OK>scl RGB
OK>scc 100 1024 -614 3276
3.9 Camera Selection Variables for details on commands that should be set before
performing any analog or digital adjustments.