Re: [FFmpeg-user] stabilisation

2016-05-11 Thread edouard chalaron
> As far as i know you have to "zoom in" to get rid of the artifacts at
> the borders, as Bouke already mentioned. The filter documentation[1]
> actually mentions an option "edge" which sounds like what you want to
> change. Try different values for that. Maybe "original" is what
> you're
> looking for.
Many thanks to all for the replies.
My issue is that the data are from an old 8mm (1940) that I scanned.
Between bad filming, film shrinkage and less than acceptable frame
registration the zooming would be so significant that I'll throw away
most of the frames !!
I will play with the options and will come back to this one.
> As an alternative to the deshake filter you can use vid.stab[2][3] which
> is intregated with two filters in ffmpeg (if compiled in the right way).
> It only supports 2-pass-encoding in ffmpeg. You also get some "wobble"
> artifacts at the border, but it isn't that bad most often. You might
> still want to crop a bit at the edges.
> 
> [1] http://ffmpeg.org/ffmpeg-filters.html#deshake
> 
> [2] https://github.com/georgmartius/vid.stab
> 
> [3] http://public.hronopik.de/vid.stab/> 

Thanks for that too ! vid stab seems to be the one !!! 
Best
Ed
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Re: [FFmpeg-user] stabilisation

2016-05-11 Thread Frank Tetzel
> when using -vf "deshake" a black frame is coming separating the
> original frame from the "interpolated" pixels along the boders.
> More like a line than a frame actually !
> Is there a way I can turn off these black lines ?

As far as i know you have to "zoom in" to get rid of the artifacts at
the borders, as Bouke already mentioned. The filter documentation[1]
actually mentions an option "edge" which sounds like what you want to
change. Try different values for that. Maybe "original" is what you're
looking for.

As an alternative to the deshake filter you can use vid.stab[2][3] which
is intregated with two filters in ffmpeg (if compiled in the right way).
It only supports 2-pass-encoding in ffmpeg. You also get some "wobble"
artifacts at the border, but it isn't that bad most often. You might
still want to crop a bit at the edges.

[1] http://ffmpeg.org/ffmpeg-filters.html#deshake
[2] https://github.com/georgmartius/vid.stab
[3] http://public.hronopik.de/vid.stab/

Regards,
Frank
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Re: [FFmpeg-user] stabilisation

2016-05-10 Thread Bouke (VideoToolShed)
- Original Message - 
From: "Carl Eugen Hoyos" <ceho...@ag.or.at>

To: <ffmpeg-user@ffmpeg.org>
Sent: Tuesday, May 10, 2016 1:13 PM
Subject: Re: [FFmpeg-user] stabilisation



edouard chalaron  xtra.co.nz> writes:


when using -vf "deshake" a black frame is coming separating the
original frame from the "interpolated" pixels along the boders.


Please provide the command line you tested together with the 
complete, uncut console output.


Just a hunch, to stabilize you move the frame within is boundaries.
Crop filter after the deshake may be the answer...

Bouke


Carl Eugen

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Re: [FFmpeg-user] stabilisation

2016-05-10 Thread Carl Eugen Hoyos
edouard chalaron  xtra.co.nz> writes:

> when using -vf "deshake" a black frame is coming separating the
> original frame from the "interpolated" pixels along the boders.

Please provide the command line you tested together with the 
complete, uncut console output.

Carl Eugen

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[FFmpeg-user] stabilisation

2016-05-09 Thread edouard chalaron
Hi all
New on this list. Apologies it the question is recurrent but I did not
find an answer.

Here we go
when using -vf "deshake" a black frame is coming separating the
original frame from the "interpolated" pixels along the boders.
More like a line than a frame actually !
Is there a way I can turn off these black lines ?

Many thanks
Edouard
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