[x264-devel] VP8 versus x264

[Klaue, Jirka]

>> I've compared VP8 with x264, just PSNR and SSIM so far.
>> If you are interested: <http://www.tkn.tu-
> berlin.de/research/evalvid/EvalVid/vp8_versus_x264.html>

> If you're doing metric comparisons, turn psy opts off in both
> encoders.  That means x264, too.
> 
> Use --tune psnr or --tune ssim accordingly.  Note that VP8 by default
> is tuned for PSNR.

I'll add the results using <http://www.its.bldrdoc.gov/vqm/> soon in the
hope that
it will be more meaningful than statements like "the picture looks
better". It should,
since the metrics NTIA used match well to tests with humans.

BTW, do you have an example of a video which looks "better" with a lower
PSNR?
And, how do you measure this?

Jirka