Brightness Adjustment Damping#

在 Exposure Auto、Gain Auto 或二者均启用的情况下，Brightness Adjustment Damping 相机功能控制像素灰度值的变化速度。

此功能类似于 Gray Value Adjustment Damping 功能，仅在 Basler ace GigE 相机机型上可用。

该功能的使用#

运作原理#

亮度调节阻尼系数越低，达到目标亮度值的速度就越快。

指定阻尼因数可能很有用，例如，避免自动功能因对象进出相机视野而中断。

同样，如果亮度值在目标亮度值附近波动，则指定阻尼系数有助于保持图像亮度稳定。

指定阻尼系数#

要指定阻尼系数：

1. 设置 Exposure Auto or the Gain Auto auto function or both to Once 或 Continuous.
2. 设置 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.

详情#

显示所有相机型号

示例代码#

// 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

您也可以使用 pylon Viewer 轻松设置参数。