Basler A400K Manual de usuario descargar pdf (Pagina 89)

AW00118501000 Features

Basler racer Camera Link 81

8.2.2 Black Level

Adjusting the camera’s black level will result in an offset to the pixel values output from the camera.

The camera’s black level is determined by the Black Level Raw parameter with the black Level

selector set to All. All pixels in the sensor are affected by this setting.

If the camera is set for a pixel data format with an 8 bit depth, an increase of 16 in a black level

setting will result in a positive offset of 1 in the pixel values output from the camera. And a decrease

of 16 in a black level setting will result in a negative offset of 1 in the pixel values output from the

camera.

If the camera is set for a pixel data format with a 12 bit depth, an increase of 1 in a black level setting

will result in a positive offset of 1 in the pixel values output from the camera. A decrease of 1 in a

black level setting will result in a negative offset of 1 in the pixel values output from the camera.

Setting the Black Level Using Basler pylon

To set the Black Level Raw All value:

 Set the Black Level Selector to All.

 Set the Black Level Raw parameter to your desired value.

You can set the Black Level Selector and the Black Level Raw parameter values from within your

application software by using the pylon API. The following code snippet illustrates using the API to

set the selector and the parameter value:

// Set Black Level Raw All

Camera.BlackLevelSelector.SetValue ( BlackLevelSelector_All );

Camera.BlackLevelRaw.SetValue( 64 );

For detailed information about using the pylon API, refer to the Basler pylon Programmer’s Guide

and API Reference.

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

For more information about the pylon Viewer, see Section 3.1 on page 15.

Setting the Black Level Using Direct Register Access

To the black level via direct register access:

 Set the value of the Black Level All register.

For more information about direct register access, see Section 3.2 on page 16.

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Basler A400K Manual de usuario Pagina 89