Re: [FFmpeg-user] fftfilt

2021-10-14 Thread Michael Koch
Am 14.10.2021 um 16:13 schrieb Michael Koch: This is the command line for the lowpass filter, where the filter freqency isn't a function of input size. The constant "8" is the filter wavelength in pixels per linepair. ffmpeg -i test.png -vf scale=2*iw:2*ih,fftfilt=dc_Y=0:dc_U=0:dc_V=0:weigh

Re: [FFmpeg-user] fftfilt

2021-10-14 Thread Michael Koch
Am 14.10.2021 um 13:29 schrieb Michael Koch: Am 14.10.2021 um 13:23 schrieb Paul B Mahol: On Thu, Oct 14, 2021 at 1:18 PM Michael Koch wrote: Am 14.10.2021 um 13:11 schrieb Paul B Mahol: On Thu, Oct 14, 2021 at 1:08 PM Michael Koch < astroelectro...@t-online.de> wrote: Am 14.10.2021 um

Re: [FFmpeg-user] fftfilt

2021-10-14 Thread Michael Koch
Am 14.10.2021 um 13:23 schrieb Paul B Mahol: On Thu, Oct 14, 2021 at 1:18 PM Michael Koch wrote: Am 14.10.2021 um 13:11 schrieb Paul B Mahol: On Thu, Oct 14, 2021 at 1:08 PM Michael Koch < astroelectro...@t-online.de> wrote: Am 14.10.2021 um 13:01 schrieb Paul B Mahol: On Thu, Oct 14, 20

Re: [FFmpeg-user] fftfilt

2021-10-14 Thread Paul B Mahol
On Thu, Oct 14, 2021 at 1:18 PM Michael Koch wrote: > Am 14.10.2021 um 13:11 schrieb Paul B Mahol: > > On Thu, Oct 14, 2021 at 1:08 PM Michael Koch < > astroelectro...@t-online.de> > > wrote: > > > >> Am 14.10.2021 um 13:01 schrieb Paul B Mahol: > >>> On Thu, Oct 14, 2021 at 12:59 PM Michael Koch

Re: [FFmpeg-user] fftfilt

2021-10-14 Thread Michael Koch
Am 14.10.2021 um 13:11 schrieb Paul B Mahol: On Thu, Oct 14, 2021 at 1:08 PM Michael Koch wrote: Am 14.10.2021 um 13:01 schrieb Paul B Mahol: On Thu, Oct 14, 2021 at 12:59 PM Michael Koch < astroelectro...@t-online.de> wrote: Am 14.10.2021 um 12:53 schrieb Paul B Mahol: On Thu, Oct 14, 2

Re: [FFmpeg-user] fftfilt

2021-10-14 Thread Paul B Mahol
On Thu, Oct 14, 2021 at 1:08 PM Michael Koch wrote: > Am 14.10.2021 um 13:01 schrieb Paul B Mahol: > > On Thu, Oct 14, 2021 at 12:59 PM Michael Koch < > astroelectro...@t-online.de> > > wrote: > > > >> Am 14.10.2021 um 12:53 schrieb Paul B Mahol: > >>> On Thu, Oct 14, 2021 at 12:29 PM Michael Koc

Re: [FFmpeg-user] fftfilt

2021-10-14 Thread Michael Koch
Am 14.10.2021 um 13:01 schrieb Paul B Mahol: On Thu, Oct 14, 2021 at 12:59 PM Michael Koch wrote: Am 14.10.2021 um 12:53 schrieb Paul B Mahol: On Thu, Oct 14, 2021 at 12:29 PM Michael Koch < astroelectro...@t-online.de> wrote: Am 14.10.2021 um 12:07 schrieb Paul B Mahol: Sorry but I'm no

Re: [FFmpeg-user] fftfilt

2021-10-14 Thread Paul B Mahol
On Thu, Oct 14, 2021 at 12:59 PM Michael Koch wrote: > Am 14.10.2021 um 12:53 schrieb Paul B Mahol: > > On Thu, Oct 14, 2021 at 12:29 PM Michael Koch < > astroelectro...@t-online.de> > > wrote: > > > >> Am 14.10.2021 um 12:07 schrieb Paul B Mahol: > >>> Sorry but I'm not on windows, so I can not

Re: [FFmpeg-user] fftfilt

2021-10-14 Thread Michael Koch
Am 14.10.2021 um 12:53 schrieb Paul B Mahol: On Thu, Oct 14, 2021 at 12:29 PM Michael Koch wrote: Am 14.10.2021 um 12:07 schrieb Paul B Mahol: Sorry but I'm not on windows, so I can not use your script. Then try the below (slightly improved) version. It would become much simpler with variabl

Re: [FFmpeg-user] fftfilt

2021-10-14 Thread Paul B Mahol
On Thu, Oct 14, 2021 at 12:29 PM Michael Koch wrote: > Am 14.10.2021 um 12:07 schrieb Paul B Mahol: > > Sorry but I'm not on windows, so I can not use your script. > > Then try the below (slightly improved) version. It would become much > simpler with variables: > ARRAY_H = pow(2,ceil(log(ceil(W*

Re: [FFmpeg-user] fftfilt

2021-10-14 Thread Michael Koch
Am 14.10.2021 um 12:07 schrieb Paul B Mahol: Sorry but I'm not on windows, so I can not use your script. Then try the below (slightly improved) version. It would become much simpler with variables: ARRAY_H = pow(2,ceil(log(ceil(W*10/9))/log(2))) ARRAY_V = pow(2,ceil(log(ceil(H*10/9))/log(2)))

Re: [FFmpeg-user] fftfilt

2021-10-14 Thread Paul B Mahol
Sorry but I'm not on windows, so I can not use your script. ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubs

Re: [FFmpeg-user] fftfilt

2021-10-14 Thread Michael Koch
Am 13.10.2021 um 23:52 schrieb Michael Koch: Am 13.10.2021 um 23:09 schrieb Michael Koch: Am 13.10.2021 um 22:57 schrieb Paul B Mahol: On Wed, Oct 13, 2021 at 10:51 PM Michael Koch wrote: Am 12.10.2021 um 19:29 schrieb Michael Koch: Am 12.10.2021 um 18:52 schrieb Paul B Mahol: On Tue, Oct