Am Di., 23. Apr. 2019 um 12:17 Uhr schrieb Paul B Mahol <[email protected]>:
> On 4/23/19, Michael Koch <[email protected]> wrote: > > Am 23.04.2019 um 11:43 schrieb Jon bae: > >> Hello, > >> I just have an general question: > >> > >> As I know denoiser are specialized to specific noise pattern. > >> > >> Makes it a different when I denoise after scaling a video, or is the > >> quality better when I denoise before scaling. > >> > >> In terms of speed it would be better for me, denoising after scaling, > but > >> when the quality is better, then I would go that way. > > > > You could try both versions simultaneously and compare them with hstack: > > > > ffmpeg -i in.mov -i in.mov -filter_complex > > > "[0]scale=640:400,atadenoise[a];[1]atadenoise,scale=640:400[b];[a][b]hstack" > > out.mov > > > > There are at least six different denoisers available: atadenoise, bm3d, > > dctdnoiz, fftdenoiz, owdenoise and vaguedenoiser > > You missed nlmeans. > > Ok, thank you, comparing is a good idea too! In general I thought there must be a more technically accurate way, but I guess this depends on the selected filter. _______________________________________________ ffmpeg-user mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
