[x264-devel] Re: [x264-devel]denoise in dct domain can improve visual quality?

[Guy Bonneau]

> 
> >   I try to turn on the denoise option and find that psnr is almost the
> > same.  I think maybe it can't improve psnr but viual quality?
> 
> Then you're not using it right. It should reduce psnr by a lot. psnr is
> computed between the filtered output and the non-filtered input, and any
> difference counts as psnr loss no matter whether the difference is an
> improvement or an artifact.

I had a look at the denoise_dct function  and would like to learn more 
about the algorithm used. I saw that the code was borrowed from libavcodec
Anyone can pinpoint for me the original publication that describes the
algorithm ?

Thanks
Guy Bonneau


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