Features AW00123409000
254 Basler ace USB 3.0
By using the vertical decimation feature, you can increase the frame rate of the camera.
Setting Vertical Decimation
You can enable vertical decimation for the acA2000-165 and acA2040-90 cameras by setting the
Decimation Vertical parameter. The parameter value can be set to 1, 2, and 4. Setting the parameter
value to 1 disables vertical decimation.
You can set the Decimation Vertical parameter value from within your application software by using
the Basler pylon API. The following code snippet illustrates using the API to set the parameter
values:
// Enable Vertical Decimation by 2
camera.DecimationVertical.SetValue(2);
// Disable Vertical Decimation
camera.DecimationVertical.SetValue(1);
You can also use the Basler pylon Viewer application to easily set the parameters.
For more information about the pylon API and the pylon Viewer, see Section 3.1 on page 61.
ROI height
If you use the Vertical Decimation feature and you set the decimation parameter
back to 1 to deactivate vertical decimation, the ROI height can be smaller than the
maximum possible width due to rounding errors.
In this case you can manually set the ROI width back to the maximum possible
height.
Fig. 99: Decimation of 2 (Color Cameras)
Fig. 98: Decimation of 2 (Mono Cameras)