Basler A400K, Руководство пользователя

Страница: 137 / 176

Configuring the Camera
Basler A400k 4-37
DRAFT
Saving a Set of PRNU Shading Values
As mentioned in Section 3.6 , when you generate a set of shading values, those values reside in
the camera’s volatile memory. To save the PRNU shading values currently in the volatile memory
to a file in the camera’s non-volatile memory, you would follow this procedure:
1. Use a binary write command to write the file name gainshading to the Name field of the
PRNU shading values bulk data CSR (see page 4-43 ).
2. Use a binary write command to set the value of the Control field in the PRNU shading values
bulk data CSR to 0x06. Setting the value to 0x06 initiates a create function.
This procedure would create a file called gainshading in the non-volatile memory and would copy
the current PRNU shading values from the camera’s volatile memory into the new file.
Sample code that illustrates how to create a bulk data file is available from Basler (see Section
4.4 ).
Activating a Saved Configuration Set File
The process of “activating” an existing configuration set file, accomplishes two things:
• It copies the values from the saved file into the camera’s volatile memory. This means that
the values will now be actively used by the camera.
• It creates a link to the activated file. If the camera is reset or if it is powered off and then back
on, the values from the activated file will be loaded into volatile memory of the camera and
actively used by the camera.
As an example, assume that the camera already has a saved configuration set file named
“UserSet01“ and that you want to activate this file. To do so, you would follow this procedure:
1. Use a binary write command to write the file name UserSet01 to the Name field of the
configuration set bulk data CSR (see page 4-41 ).
2. Use a binary write command to set the value of the Control field in the configuration set bulk
data CSR to 0x05. (Setting the value to 0x05 initiates an activate function.)
This procedure would find the UserSet01 file in the non-volatile memory and would copy the
values in the file into the camera’s volatile memory. It would also create a link to the file so that the
values in the file would be loaded into volatile memory after a reset or a power up.
Sample code that illustrates how to activate a bulk data file is available from Basler (see Section
4.4 ).
L
You can save one PRNU shading set file in the non-volatile memory.
There is a restriction on naming the file that holds the saved set of shading tables.
The file must be named
gainshading .
If the gainshading file already exists, it will be overwritten.
L
If you want to activate the factory configuration set file, use the procedure de-
scribed above and use “FactorySet” as the file name.