topic Re: Does IPU convert color video stream to monochrome? in i.MX Processors

Does IPU convert color video stream to monochrome?

tetsuomaeda — Tue, 16 Aug 2016 09:05:01 GMT

We are designing a platform of the surveillance system using iMX6. During nights we need to get monochrome video from color stream. Does anyone know whether IPU can convert color video to monochrome using such as "color space conversion"?

Color stream will be provided in YUV format.

I'd appreciate any responses.

Re: Does IPU convert color video stream to monochrome?

mike_susen — Tue, 16 Aug 2016 11:14:15 GMT

Hi Tetsuo Madea,

Yes of course i.MX6 IPU color space conversion issue

Hope it helps

Michal

Re: Does IPU convert color video stream to monochrome?

tetsuomaeda — Tue, 16 Aug 2016 21:20:18 GMT

Hi Michal !

Thank you for the information.

But, the issue seems not to have been solved.

Am I correct?

Tetsuo

Re: Does IPU convert color video stream to monochrome?

igorpadykov — Tue, 16 Aug 2016 23:31:59 GMT

Hi Tetsuo

I am afraid no sense to make color space conversion

since ipu does not support monochrome output (monochrome lcds).

Color space conversion can be used to produce YUV 400 (monochrome)

output, also one can just use Y component as it contains black and white

data.

Best regards

igor

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Re: Does IPU convert color video stream to monochrome?

tetsuomaeda — Wed, 17 Aug 2016 00:49:18 GMT

Hi Igor.

Thank you for the advice and sorry for my poor explanation.

Our input is a color camera and we would like to generate a gray-scale stream from the color stream before we compress it.

I think "IC" block in IPU has "color conversion" feature and we can use it for our purpose.

I'd appreciate your feedback.

Regards,

Tetsuo

Re: Does IPU convert color video stream to monochrome?

igorpadykov — Wed, 17 Aug 2016 01:08:52 GMT

Hi Tetsuo

one can develop necessary conversion using examples on

https://community.freescale.com/docs/DOC-94961

Best regards

igor

Re: Does IPU convert color video stream to monochrome?

tetsuomaeda — Wed, 17 Aug 2016 02:10:36 GMT

Hi Igor !

Thank you for the information.

The site would be a good help for our colleagues.

Regards,

Tetsuo