TDA4VH-Q1: Application of dynamic white balance added to TDA4VH

wang zhili

Part Number: TDA4VH-Q1
Other Parts Discussed in Thread: TDA4VH

Tool/software:

Dear TI experts,

While reviewing the TDA4VH user manual, we noticed that the VPAC3 is indicated to have a dynamic white balance function. Could you tell us how to enable it?

7 months ago

0 Gang Hua 7 months ago

TI__Guru 60740 points

Hi Zhili,

I don't seem to find anything for DWB in VISS kernel code.
https://git.ti.com/cgit/processor-sdk/imaging/tree/kernels/hwa/vpac_viss/vx_vpac_viss_target_drv.c?h=main

It is probably not supported in SDK s/w yet.

0 Gang Hua 7 months ago in reply to Gang Hua

TI__Guru 60740 points

Hi Zhili,

It looks like PDK driver support is already available.
DWB is initialized by default settings in the viss kernel.

We don't have a user interface at the viss kernel level for re-programming it frame by frame.
It is similar to AWB and therefore has to be programmed frame-by-frame (replacing AWB or on top of AWB).

We don't have a plan for adding that DWB support yet as we don't have any plan for DWB algorithm development.
You would have to modify the viss kernel code to enable your own user interface.

0 Gang Hua 7 months ago in reply to Gang Hua

TI__Guru 60740 points

This is how DWB gets initialized or programed by default.

https://git.ti.com/cgit/processor-sdk/imaging/tree/kernels/hwa/vpac_viss/vx_vpac_viss_target_defaults.c?h=main#n369

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TDA4VH-Q1: Application of dynamic white balance added to TDA4VH