AW00089317000 Standard Features
Basler ace GigE 287
The Auto Target Value parameter defines the target average gray value that the exposure auto
function will attempt to achieve when it is automatically adjusting the Exposure Time Abs value. The
target average gray value may range from 0 (black) to 255 (white) when the camera is set for an 8
bit pixel format or from 0 (black) to 4095 (white) when the camera is set for a 12 bit pixel format.
1. Select the Auto Function AOI 1.
2. Set the value of the Offset X, Offset Y, Width, and Height parameters for the AOI.
3. Set the value of the Auto Exposure Time Abs Lower Limit and Auto Exposure Time Abs Upper
Limit parameters.
4. Set the value of the Auto Target Value parameter.
5. Set the value of the Exposure Auto parameter for the "once" or the "continuous" mode of
operation.
You can set the exposure auto functionality from within your application software by using the pylon
API. The following code snippets illustrate using the API to set the exposure auto functionality:
// Select auto function AOI 1
Camera.AutoFunctionAOISelector.SetValue(
AutoFunctionAOISelector_AOI1 );
// Set the position and size of the selected auto function AOI. In
this example,
// we set the auto function AOI to cover the entire sensor
Camera.AutoFunctionAOIOffsetX.SetValue( 0 );
Camera.AutoFunctionAOIOffsetY.SetValue( 0 );
Camera.AutoFunctionAOIWidth.SetValue(
Camera.AutoFunctionAOIWidth.GetMax() );
Camera.AutoFunctionAOIHeight.SetValue(
Camera.AutoFunctionAOIHeight.GetMax() );
// Set the exposure time limits for exposure auto control
Camera.AutoExposureTimeAbsLowerLimit.SetValue( 1000 );
Camera.AutoExposureTimeAbsUpperLimit.SetValue( 1.0E6 );
// Set the target gray value for the exposure auto function
// (If gain auto is enabled, this target is also used for
If the Auto Exposure Time Abs Upper Limit parameter is set to a sufficiently high
value the camera’s frame rate may be decreased.
To set the exposure auto functionality using Basler pylon:
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