Basler Vision Technologies Sprint Series, User Manual

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Features
Basler sprint Mono Cameras 139
Stamp Pixels S3 and S4
Stamp pixels S3 and S4 represent the least significant and most significant bytes (respectively) of
the line counter. The line counter increments by one for each line captured by the camera. The
counter starts at 0 and wraps at 65535 (decimal). The line counter is reset to 0 whenever the
camera is switched off or reset. The counter is also reset to 0 whenever the line stamp feature is
disabled.
Stamp Pixels S5, S6 and S7
Stamp pixels S5, S6, and S7 represent the least significant, middle and most significant bytes
(respectively) of the line sum. The line sum is simply the total of all of the pixel values in the captured
line.
The line sum does not include the 16 added “stamp pixels.” If the AOI feature is being used, the line
sum is based only on the pixels within the AOI.
Stamp Pixel S8
Stamp pixel S8 is reserved for future use. Currently, its value will always be 0.
Stamp Pixels S9 and S10
Stamp pixels S9 and S10 represent the least significant and most significant bytes (respectively) of
the Total High Pixels. The Total High Pixels indicates the number of pixels in the captured line that
are above a camera parameter called the “High Pixel Threshold” (see Section 6.5.1 on
page 140
for information on setting this parameter).
As an example, assume that the High Pixel Threshold is set to 200. Also assume that the camera
has captured a line and that 56 of the pixels in that line have a value greater than 200. In this case,
the Total High Pixels in the line would be 56.
The total high pixels does not include any of the 16 added “stamp pixels.” If the AOI feature is being
used, the total high pixels is based only on the pixels within the AOI.
Stamp Pixels S11 and S12
Stamp pixels S11 and S12 represent the least significant and most significant bytes (respectively)
of the Total Low Pixels. The Total Low Pixels indicates the number of pixels in the captured line that
are below a camera parameter called the “Low Pixel Limit” (see Section 6.5.1 on
page 140 for
information on setting this parameter).
As an example, assume that the Low Pixel Limit is set to 100. Also assume that the camera has
captured a line and that 22 of the pixels in that line have a value less than 100. In this case, the
Total Low Pixels in the line would be 22.
The total low pixels does not include any of the 16 added “stamp pixels.” If the AOI feature is being
used, the total low pixels is based only on the pixels within the AOI.
The total high pixel and total low pixel values are useful if you want to perform automatic gain control
from within your camera control software application. If you find that the total low pixel values are
increasing over a period of time, an increase in the gain setting would be appropriate. If you find