Light Source Preset (dart E)#
根据其特定的色温，用于图像采集的光源会导致图像中的色彩偏移。您可以通过选择相关的光源预设来纠正这些色彩偏移。
该功能的使用#
选择一种 Light Source Preset#
要选择 Light Source Preset，请设置 LightSourcePreset 参数的值。
可用的预设取决于 BalanceWhiteAuto 参数设置。
- 如果
BalanceWhiteAuto参数设置为Continuous，LightSourcePreset参数设置为Auto，并且 Light Source Preset 将自动确定。 -
如果
BalanceWhiteAuto参数设置为Off，可提供以下预设：CoolWhiteFluorescent4250K：相机可校正由色温约为 4 250 K 的荧光灯照明所引起的色彩偏移。Daylight5000K：相机可校正由色温约为 5 000 K 的日光照明所引起的色彩偏移。Daylight6500K：相机可校正由色温约为 6 500 K 的日光照明所引起的色彩偏移。Daylight7500K：相机可校正由色温约为 7 500 K 的日光照明所引起的色彩偏移。Horizon2500K：相机可校正由色温约为 2 500 K 的地平线光线照明所引起的色彩偏移。Manual：色温可以设置为 手动.Tungsten2800K：相机可校正由色温约为 2 500 至 3 000 K 的钨丝灯照明所引起的色彩偏移。
获取或设置色温#
即： BslLightSourceColorTemperature 参数表示当前所选 Light Source Preset 的色温。
此外，如果将 Light Source Preset 设置为 Manual，该参数允许您手动设置色温。
外部链接#
示例代码#
// Set the light source preset to Daylight5000K
camera.LightSourcePreset.SetValue(LightSourcePreset_Daylight5000K);
// Get the color temperature of the currently selected light source preset
int64_t i = camera.BslLightSourceColorTemperature.GetValue();
// Set the light source preset to Manual
camera.LightSourcePreset.SetValue(LightSourcePreset_Manual);
// Manually set the color temperature
camera.BslLightSourceColorTemperature.SetValue(7334);
INodeMap& nodemap = camera.GetNodeMap();
// Set the light source preset to Daylight5000K
CEnumParameter(nodemap, "LightSourcePreset").SetValue("Daylight5000K");
// Get the color temperature of the currently selected light source preset
int64_t i = CIntegerParameter(nodemap, "BslLightSourceColorTemperature").GetValue();
// Set the light source preset to Manual
CEnumParameter(nodemap, "LightSourcePreset").SetValue("Manual");
// Manually set the color temperature
CIntegerParameter(nodemap, "BslLightSourceColorTemperature").SetValue(7334);
// Set the light source preset to Daylight5000K
camera.Parameters[PLCamera.LightSourcePreset].SetValue(PLCamera.LightSourcePreset.Daylight5000K);
// Get the color temperature of the currently selected light source preset
Int64 i = camera.Parameters[PLCamera.BslLightSourceColorTemperature].GetValue();
// Set the light source preset to Manual
camera.Parameters[PLCamera.LightSourcePreset].SetValue(PLCamera.LightSourcePreset.Manual);
// Manually set the color temperature
camera.Parameters[PLCamera.BslLightSourceColorTemperature].SetValue(7334);
/* 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 */
int64_t i = 0;
/* Set the light source preset to Daylight5000K */
errRes = PylonDeviceFeatureFromString(hdev, "LightSourcePreset", "Daylight5000K");
CHECK(errRes);
/* Get the color temperature of the currently selected light source preset */
errRes = PylonDeviceGetIntegerFeature(hdev, "BslLightSourceColorTemperature", &i);
CHECK(errRes);
/* Set the light source preset to Manual */
errRes = PylonDeviceFeatureFromString(hdev, "LightSourcePreset", "Manual");
CHECK(errRes);
/* Manually set the color temperature */
errRes = PylonDeviceSetIntegerFeature(hdev, "BslLightSourceColorTemperature", 7334);
CHECK(errRes);
# Set the light source preset to Daylight5000K
camera.LightSourcePreset.Value = "Daylight5000K"
# Get the color temperature of the currently selected light source preset
i = camera.BslLightSourceColorTemperature.Value
# Set the light source preset to Manual
camera.LightSourcePreset.Value = "Manual"
# Manually set the color temperature
camera.BslLightSourceColorTemperature.Value = 7334
您还可以使用 pylon Viewer 轻松设置 parameter。