• State
  • Locked Locked
  • Replies 0 replies
  • Subscribers 97 subscribers
  • Views 294 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

how to use H3A tables?

Sathish
Intellectual 1950 points

Hi,

My customer is looking for below information, please let me know if any idea.

--------------------------------------------------------------------------------------------------------------------------------------------------

I am trying to capture RAW10 bit through camera ISP of OMAP3530.
I was able to configure CCDC - PREVIEW – RESIZER paths to capture the 720x480 frames from the sensor.

Since my driver has no support for AWB, I have to manually set white balance coefficients (i.e. PRV_WBGAIN register)and white balance digital gain (i.e. PRV_WB_DGAIN register) for different lighting conditions.

I learnt that I have to use H3A block of OMAP3530 for Auto White Balancing (AWB). Also in the OMAP3530 Technical Reference Manual it’s given that for every frame from CCDC AWB block of H3A generates a table of information from which white balance coefficients and gain can be derived.

If I enable and configure AWB of H3A to get H3A tables for every frame then how to use that H3A tables to produce white balance coefficients and white balance gain that can be programmed to preview engine registers.

Is that algorithm realizable on ARM or is that needs to be done on DSP?

Thanks

regards

Sathish