Re: [video] rgb2yuv

[Richard Herveille <richard@asics.ws>]

> Hi,
>
> Do you think that the rgb2yuv core in Opencores can easily be modified for
> an input of 16-bit Colour (R:G:B 5:6:5) or 14-bit Colour (R:G:B 4:6:4).

The RGB to YCrCb converter that's available from the video_compression_systems 
is designed for pro-video applications (30bit-color R:G:B 10:10:10). It can 
be easily adapted to any other RGB-bitsize.

For 16-bit color connect the RGB signals to the MSBs, zero the LSBs. For the 
result only use the MSBs.

Richard


>
> The colour path in Digital set-top boxes is usually 16-bit RGB, or 14-bit
> (2-bits used for per-pixel Alpha)
>
> Could pad the data to 6-bits per colour channel and use the existing core
> with RGB_WIDTH set to 6?
>
> I'd just like to understand how it works, and perhaps make these
> modifications.
>
> If the author of the core still reads this list, I would appreciate the
> insight.
>
> Cheers
>
> Alex Holland

--
To unsubscribe from video mailing list please visit http://www.opencores.org/mailinglists.shtml