Dalsa PC-30-02K80-R, Manual

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Piranha Color Camera User’s Manual 36
DALSA 03-032-10211-03 9/27/2007
The Piranha Color is a bidirectional camera and the direction of the web movement can
be arranged in either way. If the object is passing the camera in the other direction, its
image will pass over the Blue channel first, then the Green channel, and finally the Red
channel. In order to properly construct a full color (RGB) image, the system needs to
know the direction of the movement. Another parameter, color scan direction (scd), is
used to specify the direction of web movement.
Setting the Line Delay between Colors
Purpose: Sets the number of lines of delay between colors that are read out
from the sensor.
Syntax:
ssa i
Syntax Elements:
i
Line delay between colors in a range from 0-6.
Notes: To read the current line delay, use the command
gcp
or get ssa.
If your line rate matches the speed of the object, then the value of
the line delay will be 3.
Adjust the
ssa value until you remove the red and blue halos
above and below a black on white horizontal line in order to set
the line delay.
Example:
ssa 3
3.12 Averaging Horizontal Pixels
Setting the Averaging Horizontal
Purpose: Averaging reduces the pixel noise and decreases the horizontal
resolution. The charge collected in adjacent pixels is averaged
together.
Syntax:
sah i
Syntax Elements:
i
The number of horizontal pixels to average. Available values
are 1 (factory setting) and 2.