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Operational Reference
Linea Lite GigE Series Camera
Extracting Metadata Stored in a Sapera Buffer
For Sapera LT developers, the
“SapMetadata”
class (included with Sapera version 8.10 and higher)
provides functions for manipulating image metadata. Metadata is appended to the end of virtual
frame buffers; Sapera LT automatically adjusts the buffer size to accommodate the metadata.
Sapera also provides two methods to view metadata. The Sapera CamExpert tool provides a tab
(when the Metadata feature is enabled) to view the metadata of the last frame capture.
Alternatively, Sapera LT provides a demo program called GigEMetaDataDemo.exe which will grab a
number of frames and display the metadata or save it to a file (.csv). In addition, source code and
C++ project files are included for a console based executable.
The following figure shows the Sapera Explorer tool screen with the Metadata Example highlighted.
Important
:
When an internal test pattern image is selected, the Metadata feature values for
Exposure Time (
) are not valid
values and must be ignored.
When in free running (not triggered) mode, the Metadata value for feature Exposure
Delay (
) is not a valid value and must be ignored.
The value of
is updated on the start of exposure.
Preliminary
