Line Noise Reduction#

The Line Noise Reduction camera feature allows you to reduce horizontal stripes in your images.

機能を使用する#

仕組み#

When looking at your images, you may notice unwanted horizontal stripes, also known as "line noise".

Usually, enabling the Line Noise Reduction feature should significantly reduce this effect:

Enabling Line Noise Reduction#

To enable line noise reduction:

1. パラメーターを BslLineNoiseReductionEnable parameter to true.
2. パラメーターを BslLineNoiseReduction parameter to a value between 0.0 and 1.0.
   This adjusts the amount of line noise reduction to be applied. The higher the value, the less line noise (horizontal stripes) will be visible in your images. However, excessively high values may result in loss of image information.

サンプルコード#

// Enable line noise reduction
camera.BslLineNoiseReductionEnable.SetValue(true);
// Adjust the amount of line noise reduction
camera.BslLineNoiseReduction.SetValue(0.5);

INodeMap& nodemap = camera.GetNodeMap();
// Enable line noise reduction
CBooleanParameter(nodemap, "BslLineNoiseReductionEnable").SetValue(true);
// Adjust the amount of line noise reduction
CFloatParameter(nodemap, "BslLineNoiseReduction").SetValue(0.5);

// Enable line noise reduction
camera.Parameters[PLCamera.BslLineNoiseReductionEnable].SetValue(true);
// Adjust the amount of line noise reduction
camera.Parameters[PLCamera.BslLineNoiseReduction].SetValue(0.5);

/* 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 line noise reduction */
errRes = PylonDeviceSetBooleanFeature(hdev, "BslLineNoiseReductionEnable", 1);
CHECK(errRes);
/* Adjust the amount of line noise reduction */
errRes = PylonDeviceSetFloatFeature(hdev, "BslLineNoiseReduction", 0.5);
CHECK(errRes);

# Enable line noise reduction
camera.BslLineNoiseReductionEnable.Value = True
# Adjust the amount of line noise reduction
camera.BslLineNoiseReduction.Value = 0.5

pylon Viewerを使用して、パラメーターを簡単に設定することもできます。