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Visitor
Posts: 1
Registered: ‎05-24-2017

FMC Imageon vita sensor and zed board- green screen

Hii,

I tried to insert a dummy block after chroma resampler. It masks the upper 8 bits with zeros.

But when I connected the FMC camera with zed board I am getting video but with a green display.

My aim is to get a grey image. i was told  that in YCRCB 422 if i take y then I get grey image ...But why am I getting green content too?

 

Visitor
Posts: 5
Registered: ‎05-29-2017

Re: FMC Imageon vita sensor and zed board- green screen

Hi Ravi,

 this is because the chroma chanels are zero-referenced at 128 on a 8 bit/channel system, If you set to 0 you are removing both the blue and red content from the signal leaving only green. Try setting to 128 and you should get greyscale.

 

Simon