TDA4VH-Q1: Black Level calibration from capture raw

Taylar Huang

Part Number: TDA4VH-Q1

Dear TI expert,

May I know why I get black level=0 while Selecting "Compute from raw"? I upload full project file for reference.

0 Erick Narvaez over 2 years ago

Hello,

Can you please check that you have uploaded the project file, I am not able to see it.

Thanks,

Erick

0 Gang Hua over 2 years ago in reply to Erick Narvaez

The measured value shall be close to sensor pedestal specified by your sensor driver.

0 Taylar Huang over 2 years ago in reply to Erick Narvaez

Hi Erick,

Please help to check it.

0 Gang Hua over 2 years ago in reply to Taylar Huang

Taylar Huang said:
20230517.rar

It looks correct to be 0.

+1 Gang Hua over 2 years ago in reply to Gang Hua

BTW, black level is only used if the sensor is linear (non-WDR).

Otherwise, black level correction is part of the WDR decompanding.

0 Taylar Huang over 2 years ago in reply to Gang Hua

It looks correct to be 0.

-> So, it may works in WDR mode. Is it correct?

0 Gang Hua over 2 years ago in reply to Taylar Huang

0 looks fine

0 Gang Hua over 2 years ago in reply to Gang Hua

BTW, it may change if you make changes in the sensor driver for any optimization of sensor performance.

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