[GEM-dev] YUV processing

[chris clepper]

On Mar 23, 2004, at 4:31 PM, B. Bogart wrote:

> So all that to say:
>
> are the yuv* objects deprecated?

yes.

>  should pix_mask take YUV and it not doing so is some CVS update issue 
> on my end?

No, pix_mask does some unknown type of processing, which averages R G 
and B and stuffs the result into the alpha.  That's not representative 
of any known color-space and I can't imagine the output is all that 
useful.  The note in the header file claims it does blue-screen, but 
that's clearly not the case.  If you want to key two images together 
then try pix_chroma_key which does actual keying.  Or perhaps 
pix_compare which will pass the greater or lesser of luminance values 
for both RGB and YUV.

>  Will pix_mask support YUV streams in the future??

I have no idea how it ever would.

cgc

> Thanks all,
> Ben
>
>
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