Basler raL2048-48gm User Manual download pdf (Page 193)

AW00118302000 Standard Features

Basler racer GigE 183

After 128 line acquisitions are completed the camera creates the "usershading" file

automatically. The "usershading" file is stored in the camera’s non-volatile memory and is not

lost if the camera power is switched off.

10.8.3.2 Working with Shading Sets

Once you have created shading set files, you can use the following pylon API functions to work with

the shading sets:

Shading Selector - is used to select the type of shading correction to configure, i.e. offset shading

correction or gain shading correction.

Shading Create - is used to create a "usershading" file. The enumeration allows selecting the

settings Off and Once.

Shading Enable - is used to enable and disable the selected type of shading correction.

Shading Set Selector - is used to select the shading set to which the activate and the create

enumeration commands will be applied.

Shading Set Activate - is used to activate the selected shading set. "Activate" means that the

shading set will be copied from the camera’s non-volatile memory into it’s volatile memory. When

the shading correction feature is enabled, the shading set in the volatile memory will be used to

perform shading correction.

Shading Set Default Selector - is used to select the shading set that will be loaded into the

camera’s volatile memory during camera bootup.

Shading Status - is used to determine the error status of operations such as Shading Set Activate.

The following error statuses may be indicated:

No error - the last operation performed was successful.

Startup Set error - there was a problem with the default shading set.

Activate error - the selected shading set could not be loaded into the volatile memory.

Create error - and error occurred during the attempt of creating a "usershading" file.

The use of the pylon API functions listed above is illustrated in the shading correction sample code

included with the pylon SDK.

You can also use the Shading parameters group in the Basler pylon Viewer application to access

these functions.

And you can use the File Access selection in the Camera menu of the Viewer to save a shading set

file to a PC and to upload a shading set file from the PC to the camera.

Any time you make a change to the optics or lighting or if you change the camera’s

gain settings or exposure mode, you must create a new "usershading" file. Using

an out of date "usershading" file can result in poor image quality.

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Basler raL2048-48gm User Manual Page 193