Point Grey Flea3 GigE Technical Reference
8 Flea3 GigE Attributes
The following frame-specific information can be provided:
n
Timestamp
n
Gain
n
Shutter
n
Brightness
n
White Balance
n
Frame counter
n
Strobe Pattern counter
n
GPIO pin state
n
ROI position
If you turned on all possible options the first 40 bytes of image data would contain camera information in the following
format, when accessed using the FlyCapture 2 API:
(assuming
unsigned char* data = rawImage.GetData();
and an
Image
object
rawImage
):
n
data[0] = first byte of Timestamp data
n
data[4] = first byte of Gain data
n
data[24] = first byte of Frame Counter data
If only Shutter embedding were enabled, then the first 4 bytes of the image would contain Shutter information for that
image. Similarly, if only Brightness embedding were enabled, the first 4 bytes would contain Brightness information.
For monochrome cameras, white balance is still included, but no valid data is provided.
To access embedded information:
n
CSRs—
FRAME_INFO: 12F8h
Interpreting Timestamp information
The Timestamp format is as follows (some cameras replace the bottom 4 bits of the cycle offset with a 4-bit version of
the Frame Counter):
Cycle_count increments from 0 to 7999, which equals one second.
Second_count increments from 0 to 127.
All counters reset to 0 at the end of each cycle.
Revised 10/29/2013
Copyright ©2010-2013 Point Grey Research Inc.
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