Re: [FFmpeg-user] Guide to denoise VHS videos

2021-04-15 Thread Ulf Zibis
Am 12.04.21 um 08:53 schrieb Michael Koch: Am 12.04.2021 um 00:39 schrieb Ulf Zibis: My question is not about head-switching effects, it mainly is about temporal noise. E.G., there is the hqdn3d filter, which can do both, spacial and temporal denoise. But I'm missing some guidance about

Re: [FFmpeg-user] Guide to denoise VHS videos

2021-04-12 Thread Carl Zwanzig
On 4/11/2021 3:39 PM, Ulf Zibis wrote: What is TBC? Time Base Corrector - corrects/standardizes the timing of analog signals coming off tape (see https://en.wikipedia.org/wiki/Time_base_correction for a good description). z! ___ ffmpeg-user

Re: [FFmpeg-user] Guide to denoise VHS videos

2021-04-12 Thread Rohit Prajapati
I need help with some issues in the FFmpeg command. *show error in android * 2021-04-09 11:25:01.052 31074-31074/com.daasuu.gpuvideoandroid E/fsfdsfdfgfdffcszxczxczx: false: ffmpeg version n3.0.1 Copyright (c) 2000-2016 the FFmpeg developers built with gcc 4.8 (GCC) configuration:

Re: [FFmpeg-user] Guide to denoise VHS videos

2021-04-12 Thread Michael Koch
Am 12.04.2021 um 00:39 schrieb Ulf Zibis: My question is not about head-switching effects, it mainly is about temporal noise. E.G., there is the hqdn3d filter, which can do both, spacial and temporal denoise. But I'm missing some guidance about using the parameters and in comparision to

Re: [FFmpeg-user] Guide to denoise VHS videos

2021-04-11 Thread Ulf Zibis
Am 11.04.21 um 20:46 schrieb Carl Zwanzig: I assume you're stuck with the captures you already have, yes? (Most of the issues come from the analog world and ought to be fixed there- a TBC on the playback deck output, capturing YC outputs if available instead of composite, cleaning the

Re: [FFmpeg-user] Guide to denoise VHS videos

2021-04-11 Thread Carl Zwanzig
On 4/11/2021 12:41 PM, Phil Rhodes via ffmpeg-user wrote: Did anyone ever write a TBC filter in software? It might be a bit dependent on picture content, but it strikes me it ought to be possible to do something that would match up the horizontal position of rows of pixels by minimising contrast

Re: [FFmpeg-user] Guide to denoise VHS videos

2021-04-11 Thread Phil Rhodes via ffmpeg-user
> a TBC on the playback deck output Did anyone ever write a TBC filter in software? It might be a bit dependent on picture content, but it strikes me it ought to be possible to do something that would match up the horizontal position of rows of pixels by minimising contrast between adjacent

Re: [FFmpeg-user] Guide to denoise VHS videos

2021-04-11 Thread Carl Zwanzig
On 4/11/2021 3:10 AM, Ulf Zibis wrote: does anyone know a good guide how to denoise mpeg2 videos, which come from VHS videos, recorded with DVD-recorder? I assume you're stuck with the captures you already have, yes? (Most of the issues come from the analog world and ought to be fixed there-