Data Chunks; Gain Chunk - Basler acA2040-55 User Manual

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7.23.3 Data Chunks

You can select the individual data chunks to be appended to image data by selecting the kind if data
chunk and then enabling it. For details, see below.

7.23.3.1 Gain Chunk

The gain chunk feature adds a chunk to each acquired image containing the gain All parameter
value used for the image acquisition.
To enable the gain chunk:
1. Use the Chunk Selector to select the Gain chunk.
2. Use the Chunk Enable parameter to set the value of the gain chunk to true.
Once the gain chunk is enabled and Chunk Mode Active (see Section 7.23.4 on
enabled, the camera appends a gain chunk to each acquired image.
After an image with an appended chunk has been received by your computer the chunk must be
retrieved. For information about retrieving data chunks, see Section 7.23.5 on
You can set the Chunk Selector and Chunk Enable parameter value from within your application
software by using the Basler pylon Camera Software Suite. The following code snippet illustrates
using the API to activate the chunk mode, select the gain chunk, and enable the gain chunk:
// make chunk mode active, select and enable Gain chunk
camera.ChunkSelector.SetValue(ChunkSelector_Gain);
camera.ChunkEnable.SetValue(true);
You can also use the Basler pylon Viewer application to easily set the parameters.
For more information about the pylon Camera Software Suite and the pylon Viewer, see Section 3.1
on page 61.
Basler ace USB 3.0
Features
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