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

[Loren Merritt]

On Mon, 23 Apr 2007, jogging song wrote:

>   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.

--Loren Merritt

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