TDA3MV: Color Control of Video Encoder

JP Park95

Expert 1100 points

Part Number: TDA3MV

We is using Vison SDK 3.0 and our board display output is CVBS.

We want to adjust contrast, hue, brightness, saturation of CVBS output.

Please do you give me how to change contrast, hue, brightness, saturation value.

Thanks

JP Park

over 6 years ago

0 Rishabh Garg over 6 years ago

TI__Guru 55685 points

Hi,

ForTDA3xx device you can't change BCHS Brightness/Contrast/Saturation/Hue values as there is no HW support.

Regards,
Rishabh

0 JP Park95 over 6 years ago in reply to Rishabh Garg

Expert 1100 points

Hi Rishabh

Thanks for your replay.
Can't change Brightness/Contrast/Saturation/Hue values throgh register of VENC_GAIN_U, VENC_GAIN_V, VENC_GAIN_Y ?

Thanks
JP Park

0 Rishabh Garg over 6 years ago in reply to JP Park95

TI__Guru 55685 points

Hi,

These are analog gains that are needed for NTSC/PAL displays.
BCHS operations should be done on digital data inside DSS.
Why do you need BCHS change?

Regards,
Rishabh

0 JP Park95 over 6 years ago in reply to Rishabh Garg

Expert 1100 points

Hi,

Thanks for your reply.
For better picture quality improvement.

Regards,
JP Park

0 Rishabh Garg over 6 years ago in reply to JP Park95

TI__Guru 55685 points

Hi,

As I said previously DSS doesn't support this feature.
You should either do it in an algorithm or on the capture side.

Regards,
Rishabh

0 JP Park95 over 6 years ago in reply to Rishabh Garg

Expert 1100 points

Hi, Rishabh

Thanks for your reply.

Regards,
Rishabh

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TDA3MV: Color Control of Video Encoder