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Brightness Adjustment Damping#

The Brightness Adjustment Damping camera feature controls the speed with which pixel gray values are changed when Exposure Auto, Gain Auto, or both are enabled.

This feature is similar to the Gray Value Adjustment Damping feature, which is only available on Basler ace GigE camera models.

Using the Feature#

How It Works#

The lower the brightness adjustment damping factor, the faster the target brightness value is reached.

Specifying a damping factor can be useful, for example, to avoid the auto functions being disrupted by objects moving in and out of the camera's area of view.

Also, specifying a damping factor can help to keep the brightness of your images stable if the brightness value is oscillating around the target brightness value.

Info

The Gray Value Adjustment Damping feature, which is only available on Basler ace GigE camera models, works the opposite way: The lower the gray value adjustment damping factor, the slower the target brightness value is reached.

Specifying a Damping Factor#

To specify a damping factor:

  1. Set the Exposure Auto or the Gain Auto auto function or both to Once or Continuous.
  2. Set the AutoTargetBrightnessDamping parameter to the desired value.
    You can set the parameter in a range from 0.1 to 1.0. Using lower parameter values means that the target value is reached faster. The default value depends on your camera model.

Specifics#

Show all camera models

Camera Model Default Damping Factor
a2A640-240gmSWIR Brightness Adjustment Damping feature not supported
a2A640-240umSWIR Brightness Adjustment Damping feature not supported
a2A1280-80gmSWIR Brightness Adjustment Damping feature not supported
a2A1280-125umSWIR Brightness Adjustment Damping feature not supported
a2A1920-51gcBAS Brightness Adjustment Damping feature not supported
a2A1920-51gcPRO Brightness Adjustment Damping feature not supported
a2A1920-51gmBAS Brightness Adjustment Damping feature not supported
a2A1920-51gmPRO Brightness Adjustment Damping feature not supported
a2A1920-160ucBAS Brightness Adjustment Damping feature not supported
a2A1920-160ucPRO Brightness Adjustment Damping feature not supported
a2A1920-160umBAS Brightness Adjustment Damping feature not supported
a2A1920-160umPRO Brightness Adjustment Damping feature not supported
a2A1920-165g5cBAS Brightness Adjustment Damping feature not supported
a2A1920-165g5mBAS Brightness Adjustment Damping feature not supported
a2A2048-35gmSWIR Brightness Adjustment Damping feature not supported
a2A2048-110umSWIR Brightness Adjustment Damping feature not supported
a2A2440-98g5cBAS Brightness Adjustment Damping feature not supported
a2A2440-98g5mBAS Brightness Adjustment Damping feature not supported
a2A2448-23gcBAS Brightness Adjustment Damping feature not supported
a2A2448-23gcPRO Brightness Adjustment Damping feature not supported
a2A2448-23gmBAS Brightness Adjustment Damping feature not supported
a2A2448-23gmPRO Brightness Adjustment Damping feature not supported
a2A2448-75ucBAS Brightness Adjustment Damping feature not supported
a2A2448-75ucPRO Brightness Adjustment Damping feature not supported
a2A2448-75umBAS Brightness Adjustment Damping feature not supported
a2A2448-75umPRO Brightness Adjustment Damping feature not supported
a2A2448-105g5cBAS Brightness Adjustment Damping feature not supported
a2A2448-105g5mBAS Brightness Adjustment Damping feature not supported
a2A2448-120cc Brightness Adjustment Damping feature not supported
a2A2448-120cm Brightness Adjustment Damping feature not supported
a2A2448-210cc Brightness Adjustment Damping feature not supported
a2A2448-210cm Brightness Adjustment Damping feature not supported
a2A2560-20gmSWIR Brightness Adjustment Damping feature not supported
a2A2560-70umSWIR Brightness Adjustment Damping feature not supported
a2A2590-22gcBAS Brightness Adjustment Damping feature not supported
a2A2590-22gcPRO Brightness Adjustment Damping feature not supported
a2A2590-22gmBAS Brightness Adjustment Damping feature not supported
a2A2590-22gmPRO Brightness Adjustment Damping feature not supported
a2A2590-60ucBAS Brightness Adjustment Damping feature not supported
a2A2590-60ucPRO Brightness Adjustment Damping feature not supported
a2A2590-60umBAS Brightness Adjustment Damping feature not supported
a2A2590-60umPRO Brightness Adjustment Damping feature not supported
a2A2600-20gcBAS Brightness Adjustment Damping feature not supported
a2A2600-20gcPRO Brightness Adjustment Damping feature not supported
a2A2600-20gmBAS Brightness Adjustment Damping feature not supported
a2A2600-20gmPRO Brightness Adjustment Damping feature not supported
a2A2600-64ucBAS Brightness Adjustment Damping feature not supported
a2A2600-64ucPRO Brightness Adjustment Damping feature not supported
a2A2600-64umBAS Brightness Adjustment Damping feature not supported
a2A2600-64umPRO Brightness Adjustment Damping feature not supported
a2A2840-14gcBAS Brightness Adjustment Damping feature not supported
a2A2840-14gcPRO Brightness Adjustment Damping feature not supported
a2A2840-14gmBAS Brightness Adjustment Damping feature not supported
a2A2840-14gmPRO Brightness Adjustment Damping feature not supported
a2A2840-14gmUV Brightness Adjustment Damping feature not supported
a2A2840-48ucBAS Brightness Adjustment Damping feature not supported
a2A2840-48ucPRO Brightness Adjustment Damping feature not supported
a2A2840-48umBAS Brightness Adjustment Damping feature not supported
a2A2840-48umPRO Brightness Adjustment Damping feature not supported
a2A2840-48umUV Brightness Adjustment Damping feature not supported
a2A2840-67g5cBAS Brightness Adjustment Damping feature not supported
a2A2840-67g5mBAS Brightness Adjustment Damping feature not supported
a2A2840-67g5mUV Brightness Adjustment Damping feature not supported
a2A2840-86cc Brightness Adjustment Damping feature not supported
a2A2840-86cm Brightness Adjustment Damping feature not supported
a2A3840-13gcBAS Brightness Adjustment Damping feature not supported
a2A3840-13gcPRO Brightness Adjustment Damping feature not supported
a2A3840-13gmBAS Brightness Adjustment Damping feature not supported
a2A3840-13gmPRO Brightness Adjustment Damping feature not supported
a2A3840-45ucBAS Brightness Adjustment Damping feature not supported
a2A3840-45ucPRO Brightness Adjustment Damping feature not supported
a2A3840-45umBAS Brightness Adjustment Damping feature not supported
a2A3840-45umPRO Brightness Adjustment Damping feature not supported
a2A4096-9gcBAS Brightness Adjustment Damping feature not supported
a2A4096-9gcPRO Brightness Adjustment Damping feature not supported
a2A4096-9gmBAS Brightness Adjustment Damping feature not supported
a2A4096-9gmPRO Brightness Adjustment Damping feature not supported
a2A4096-30ucBAS Brightness Adjustment Damping feature not supported
a2A4096-30ucPRO Brightness Adjustment Damping feature not supported
a2A4096-30umBAS Brightness Adjustment Damping feature not supported
a2A4096-30umPRO Brightness Adjustment Damping feature not supported
a2A4096-44g5cBAS Brightness Adjustment Damping feature not supported
a2A4096-44g5mBAS Brightness Adjustment Damping feature not supported
a2A4096-67cc Brightness Adjustment Damping feature not supported
a2A4096-67cm Brightness Adjustment Damping feature not supported
a2A4200-12gcBAS Brightness Adjustment Damping feature not supported
a2A4200-12gcPRO Brightness Adjustment Damping feature not supported
a2A4200-12gmBAS Brightness Adjustment Damping feature not supported
a2A4200-12gmPRO Brightness Adjustment Damping feature not supported
a2A4200-40ucBAS Brightness Adjustment Damping feature not supported
a2A4200-40ucPRO Brightness Adjustment Damping feature not supported
a2A4200-40umBAS Brightness Adjustment Damping feature not supported
a2A4200-40umPRO Brightness Adjustment Damping feature not supported
a2A4504-5gcBAS Brightness Adjustment Damping feature not supported
a2A4504-5gcPRO Brightness Adjustment Damping feature not supported
a2A4504-5gmBAS Brightness Adjustment Damping feature not supported
a2A4504-5gmPRO Brightness Adjustment Damping feature not supported
a2A4504-18ucBAS Brightness Adjustment Damping feature not supported
a2A4504-18ucPRO Brightness Adjustment Damping feature not supported
a2A4504-18umBAS Brightness Adjustment Damping feature not supported
a2A4504-18umPRO Brightness Adjustment Damping feature not supported
a2A4504-27g5cBAS Brightness Adjustment Damping feature not supported
a2A4504-27g5mBAS Brightness Adjustment Damping feature not supported
a2A4504-42cc Brightness Adjustment Damping feature not supported
a2A4504-42cm Brightness Adjustment Damping feature not supported
a2A4508-6gcBAS Brightness Adjustment Damping feature not supported
a2A4508-6gcPRO Brightness Adjustment Damping feature not supported
a2A4508-6gmBAS Brightness Adjustment Damping feature not supported
a2A4508-6gmPRO Brightness Adjustment Damping feature not supported
a2A4508-20ucBAS Brightness Adjustment Damping feature not supported
a2A4508-20ucPRO Brightness Adjustment Damping feature not supported
a2A4508-20umBAS Brightness Adjustment Damping feature not supported
a2A4508-20umPRO Brightness Adjustment Damping feature not supported
a2A5320-7gcBAS Brightness Adjustment Damping feature not supported
a2A5320-7gcPRO Brightness Adjustment Damping feature not supported
a2A5320-7gmBAS Brightness Adjustment Damping feature not supported
a2A5320-7gmPRO Brightness Adjustment Damping feature not supported
a2A5320-23ucBAS Brightness Adjustment Damping feature not supported
a2A5320-23ucPRO Brightness Adjustment Damping feature not supported
a2A5320-23umBAS Brightness Adjustment Damping feature not supported
a2A5320-23umPRO Brightness Adjustment Damping feature not supported
a2A5320-34g5cBAS Brightness Adjustment Damping feature not supported
a2A5320-34g5mBAS Brightness Adjustment Damping feature not supported
a2A5320-52cc Brightness Adjustment Damping feature not supported
a2A5320-52cm Brightness Adjustment Damping feature not supported
a2A5328-4gcBAS Brightness Adjustment Damping feature not supported
a2A5328-4gcPRO Brightness Adjustment Damping feature not supported
a2A5328-4gmBAS Brightness Adjustment Damping feature not supported
a2A5328-4gmPRO Brightness Adjustment Damping feature not supported
a2A5328-15ucBAS Brightness Adjustment Damping feature not supported
a2A5328-15ucPRO Brightness Adjustment Damping feature not supported
a2A5328-15umBAS Brightness Adjustment Damping feature not supported
a2A5328-15umPRO Brightness Adjustment Damping feature not supported
a2A5328-22g5cBAS Brightness Adjustment Damping feature not supported
a2A5328-22g5mBAS Brightness Adjustment Damping feature not supported
a2A5328-35cc Brightness Adjustment Damping feature not supported
a2A5328-35cm Brightness Adjustment Damping feature not supported
acA640-121gm Brightness Adjustment Damping feature not supported
acA640-300gc Brightness Adjustment Damping feature not supported
acA640-300gm Brightness Adjustment Damping feature not supported
acA640-750uc Brightness Adjustment Damping feature not supported
acA640-750um Brightness Adjustment Damping feature not supported
acA720-290gc Brightness Adjustment Damping feature not supported
acA720-290gm Brightness Adjustment Damping feature not supported
acA720-520uc Brightness Adjustment Damping feature not supported
acA720-520um Brightness Adjustment Damping feature not supported
acA800-200gc Brightness Adjustment Damping feature not supported
acA800-200gm Brightness Adjustment Damping feature not supported
acA800-510uc Brightness Adjustment Damping feature not supported
acA800-510um Brightness Adjustment Damping feature not supported
acA1280-60gc Brightness Adjustment Damping feature not supported
acA1280-60gm Brightness Adjustment Damping feature not supported
acA1300-60gc Brightness Adjustment Damping feature not supported
acA1300-60gm Brightness Adjustment Damping feature not supported
acA1300-60gmNIR Brightness Adjustment Damping feature not supported
acA1300-75gc Brightness Adjustment Damping feature not supported
acA1300-75gm Brightness Adjustment Damping feature not supported
acA1300-200uc Brightness Adjustment Damping feature not supported
acA1300-200um Brightness Adjustment Damping feature not supported
acA1440-73gc Brightness Adjustment Damping feature not supported
acA1440-73gm Brightness Adjustment Damping feature not supported
acA1440-220uc Brightness Adjustment Damping feature not supported
acA1440-220um Brightness Adjustment Damping feature not supported
acA1600-20gc Brightness Adjustment Damping feature not supported
acA1600-20uc Brightness Adjustment Damping feature not supported
acA1600-60gc Brightness Adjustment Damping feature not supported
acA1600-60gm Brightness Adjustment Damping feature not supported
acA1920-25gc Brightness Adjustment Damping feature not supported
acA1920-25gm Brightness Adjustment Damping feature not supported
acA1920-25uc Brightness Adjustment Damping feature not supported
acA1920-25um Brightness Adjustment Damping feature not supported
acA1920-40gc Brightness Adjustment Damping feature not supported
acA1920-40gm Brightness Adjustment Damping feature not supported
acA1920-40uc Brightness Adjustment Damping feature not supported
acA1920-40ucMED Brightness Adjustment Damping feature not supported
acA1920-40um Brightness Adjustment Damping feature not supported
acA1920-40umMED Brightness Adjustment Damping feature not supported
acA1920-48gc Brightness Adjustment Damping feature not supported
acA1920-48gm Brightness Adjustment Damping feature not supported
acA1920-50gc Brightness Adjustment Damping feature not supported
acA1920-50gm Brightness Adjustment Damping feature not supported
acA1920-150uc Brightness Adjustment Damping feature not supported
acA1920-150um Brightness Adjustment Damping feature not supported
acA1920-155uc Brightness Adjustment Damping feature not supported
acA1920-155ucMED Brightness Adjustment Damping feature not supported
acA1920-155um Brightness Adjustment Damping feature not supported
acA1920-155umMED Brightness Adjustment Damping feature not supported
acA2000-50gc Brightness Adjustment Damping feature not supported
acA2000-50gm Brightness Adjustment Damping feature not supported
acA2000-165uc Brightness Adjustment Damping feature not supported
acA2000-165um Brightness Adjustment Damping feature not supported
acA2040-25gc Brightness Adjustment Damping feature not supported
acA2040-25gm Brightness Adjustment Damping feature not supported
acA2040-25gmNIR Brightness Adjustment Damping feature not supported
acA2040-35gc Brightness Adjustment Damping feature not supported
acA2040-35gm Brightness Adjustment Damping feature not supported
acA2040-55uc Brightness Adjustment Damping feature not supported
acA2040-55um Brightness Adjustment Damping feature not supported
acA2040-90uc Brightness Adjustment Damping feature not supported
acA2040-90um Brightness Adjustment Damping feature not supported
acA2040-90umNIR Brightness Adjustment Damping feature not supported
acA2040-120uc Brightness Adjustment Damping feature not supported
acA2040-120um Brightness Adjustment Damping feature not supported
acA2440-20gc Brightness Adjustment Damping feature not supported
acA2440-20gm Brightness Adjustment Damping feature not supported
acA2440-35uc Brightness Adjustment Damping feature not supported
acA2440-35ucMED Brightness Adjustment Damping feature not supported
acA2440-35um Brightness Adjustment Damping feature not supported
acA2440-35umMED Brightness Adjustment Damping feature not supported
acA2440-75uc Brightness Adjustment Damping feature not supported
acA2440-75ucMED Brightness Adjustment Damping feature not supported
acA2440-75um Brightness Adjustment Damping feature not supported
acA2440-75umMED Brightness Adjustment Damping feature not supported
acA2500-14gc Brightness Adjustment Damping feature not supported
acA2500-14gm Brightness Adjustment Damping feature not supported
acA2500-14uc Brightness Adjustment Damping feature not supported
acA2500-14um Brightness Adjustment Damping feature not supported
acA2500-20gc Brightness Adjustment Damping feature not supported
acA2500-20gcMED Brightness Adjustment Damping feature not supported
acA2500-20gm Brightness Adjustment Damping feature not supported
acA2500-20gmMED Brightness Adjustment Damping feature not supported
acA2500-60uc Brightness Adjustment Damping feature not supported
acA2500-60um Brightness Adjustment Damping feature not supported
acA3088-16gc Brightness Adjustment Damping feature not supported
acA3088-16gm Brightness Adjustment Damping feature not supported
acA3088-57uc Brightness Adjustment Damping feature not supported
acA3088-57ucMED Brightness Adjustment Damping feature not supported
acA3088-57um Brightness Adjustment Damping feature not supported
acA3088-57umMED Brightness Adjustment Damping feature not supported
acA3800-10gc Brightness Adjustment Damping feature not supported
acA3800-10gm Brightness Adjustment Damping feature not supported
acA3800-14uc Brightness Adjustment Damping feature not supported
acA3800-14um Brightness Adjustment Damping feature not supported
acA4024-8gc Brightness Adjustment Damping feature not supported
acA4024-8gm Brightness Adjustment Damping feature not supported
acA4024-29uc Brightness Adjustment Damping feature not supported
acA4024-29um Brightness Adjustment Damping feature not supported
acA4096-11gc Brightness Adjustment Damping feature not supported
acA4096-11gm Brightness Adjustment Damping feature not supported
acA4096-30uc Brightness Adjustment Damping feature not supported
acA4096-30ucMED Brightness Adjustment Damping feature not supported
acA4096-30um Brightness Adjustment Damping feature not supported
acA4096-30umMED Brightness Adjustment Damping feature not supported
acA4096-40uc Brightness Adjustment Damping feature not supported
acA4096-40ucMED Brightness Adjustment Damping feature not supported
acA4096-40um Brightness Adjustment Damping feature not supported
acA4096-40umMED Brightness Adjustment Damping feature not supported
acA4112-8gc Brightness Adjustment Damping feature not supported
acA4112-8gm Brightness Adjustment Damping feature not supported
acA4112-20uc Brightness Adjustment Damping feature not supported
acA4112-20ucMED Brightness Adjustment Damping feature not supported
acA4112-20um Brightness Adjustment Damping feature not supported
acA4112-20umMED Brightness Adjustment Damping feature not supported
acA4112-30uc Brightness Adjustment Damping feature not supported
acA4112-30ucMED Brightness Adjustment Damping feature not supported
acA4112-30um Brightness Adjustment Damping feature not supported
acA4112-30umMED Brightness Adjustment Damping feature not supported
acA5472-5gc Brightness Adjustment Damping feature not supported
acA5472-5gm Brightness Adjustment Damping feature not supported
acA5472-17uc Brightness Adjustment Damping feature not supported
acA5472-17ucMED Brightness Adjustment Damping feature not supported
acA5472-17um Brightness Adjustment Damping feature not supported
acA5472-17umMED Brightness Adjustment Damping feature not supported
boA1936-400cc Brightness Adjustment Damping feature not supported
boA1936-400cm Brightness Adjustment Damping feature not supported
boA2448-250cc Brightness Adjustment Damping feature not supported
boA2448-250cm Brightness Adjustment Damping feature not supported
boA2832-190cc Brightness Adjustment Damping feature not supported
boA2832-190cm Brightness Adjustment Damping feature not supported
boA4096-93cc Brightness Adjustment Damping feature not supported
boA4096-93cm Brightness Adjustment Damping feature not supported
boA4096-180cc Brightness Adjustment Damping feature not supported
boA4096-180cm Brightness Adjustment Damping feature not supported
boA4112-68cc Brightness Adjustment Damping feature not supported
boA4112-68cm Brightness Adjustment Damping feature not supported
boA4500-45cc Brightness Adjustment Damping feature not supported
boA4500-45cm Brightness Adjustment Damping feature not supported
boA4504-100cc Brightness Adjustment Damping feature not supported
boA4504-100cm Brightness Adjustment Damping feature not supported
boA5120-150cc Brightness Adjustment Damping feature not supported
boA5120-150cm Brightness Adjustment Damping feature not supported
boA5120-230cc Brightness Adjustment Damping feature not supported
boA5120-230cm Brightness Adjustment Damping feature not supported
boA5320-150cc Brightness Adjustment Damping feature not supported
boA5320-150cm Brightness Adjustment Damping feature not supported
boA5328-100cc Brightness Adjustment Damping feature not supported
boA5328-100cm Brightness Adjustment Damping feature not supported
boA6500-36cc Brightness Adjustment Damping feature not supported
boA6500-36cm Brightness Adjustment Damping feature not supported
boA8100-16cc Brightness Adjustment Damping feature not supported
boA8100-16cm Brightness Adjustment Damping feature not supported
boA9344-30cc Brightness Adjustment Damping feature not supported
boA9344-30cm Brightness Adjustment Damping feature not supported
boA9344-70cc Brightness Adjustment Damping feature not supported
boA9344-70cm Brightness Adjustment Damping feature not supported
boA13440-17cm Brightness Adjustment Damping feature not supported
daA720-520uc Brightness Adjustment Damping feature not supported
daA720-520um Brightness Adjustment Damping feature not supported
daA1280-54uc 0.5
daA1280-54um 0.5
daA1440-220uc Brightness Adjustment Damping feature not supported
daA1440-220um Brightness Adjustment Damping feature not supported
daA1600-60uc 0.2
daA1600-60um 0.2
daA1920-15um 0.3
daA1920-30uc 0.3
daA1920-30um 0.3
daA1920-160uc Brightness Adjustment Damping feature not supported
daA1920-160um Brightness Adjustment Damping feature not supported
daA2448-70uc Brightness Adjustment Damping feature not supported
daA2448-70um Brightness Adjustment Damping feature not supported
daA2500-14uc 0.3
daA2500-14um 0.3
daA3840-45uc Brightness Adjustment Damping feature not supported
daA3840-45um Brightness Adjustment Damping feature not supported
dmA720-290gc Brightness Adjustment Damping feature not supported
dmA720-290gm Brightness Adjustment Damping feature not supported
dmA1440-73gc Brightness Adjustment Damping feature not supported
dmA1440-73gm Brightness Adjustment Damping feature not supported
dmA1920-51gc Brightness Adjustment Damping feature not supported
dmA1920-51gm Brightness Adjustment Damping feature not supported
puA1280-54uc 0.5
puA1280-54um 0.5
puA1600-60uc 0.2
puA1600-60um 0.2
puA1920-30uc 0.3
puA1920-30um 0.3
puA2500-14uc 0.3
puA2500-14um 0.3
r2L2048-29gc Brightness Adjustment Damping feature not supported
r2L2048-58gm Brightness Adjustment Damping feature not supported
r2L2048-62cc Brightness Adjustment Damping feature not supported
r2L2048-62g5c Brightness Adjustment Damping feature not supported
r2L2048-172cm Brightness Adjustment Damping feature not supported
r2L2048-172g5m Brightness Adjustment Damping feature not supported
r2L4096-14gc Brightness Adjustment Damping feature not supported
r2L4096-29gm Brightness Adjustment Damping feature not supported
r2L4096-42cc Brightness Adjustment Damping feature not supported
r2L4096-42g5c Brightness Adjustment Damping feature not supported
r2L4096-84cm Brightness Adjustment Damping feature not supported
r2L4096-84g5m Brightness Adjustment Damping feature not supported
r2L8192-200cm Brightness Adjustment Damping feature not supported
r2L16384-120cm Brightness Adjustment Damping feature not supported

Sample Code#

// Enable Gain Auto by setting the operating mode to Continuous
camera.GainAuto.SetValue(GainAuto_Continuous);
// Set brightness adjustment damping to 0.7
camera.AutoTargetBrightnessDamping.SetValue(0.7);
INodeMap& nodemap = camera.GetNodeMap();
// Enable Gain Auto by setting the operating mode to Continuous
CEnumParameter(nodemap, "GainAuto").SetValue("Continuous");
// Set brightness adjustment damping to 0.7
CFloatParameter(nodemap, "AutoTargetBrightnessDamping").SetValue(0.7);
// Enable Gain Auto by setting the operating mode to Continuous
camera.Parameters[PLCamera.GainAuto].SetValue(PLCamera.GainAuto.Continuous);
// Set brightness adjustment damping to 0.7
camera.Parameters[PLCamera.AutoTargetBrightnessDamping].SetValue(0.7);
/* Macro to check for errors */
#define CHECK(errc) if (GENAPI_E_OK != errc) printErrorAndExit(errc)
GENAPIC_RESULT errRes = GENAPI_E_OK;  /* Return value of pylon methods */
/* Enable Gain Auto by setting the operating mode to Continuous */
errRes = PylonDeviceFeatureFromString(hdev, "GainAuto", "Continuous");
CHECK(errRes);
/* Set brightness adjustment damping to 0.7 */
errRes = PylonDeviceSetFloatFeature(hdev, "AutoTargetBrightnessDamping", 0.7);
CHECK(errRes);
# Enable Gain Auto by setting the operating mode to Continuous
camera.GainAuto.Value = "Continuous"
# Set brightness adjustment damping to 0.7
camera.AutoTargetBrightnessDamping.Value = 0.7

You can also use the pylon Viewer to easily set the parameters.