[TriLUG] OT: auto-centered video[1]?

[Mauricio Tavares via TriLUG]

On Mon, Aug 28, 2017 at 10:44 AM, Scott Chilcote via TriLUG
<trilug at trilug.org> wrote:
> Hello Brian,
>
> I haven't tried this, but you may be able to use a command line script
> like ffmpeg to convert your still frames into a video.
> e.g.
> https://askubuntu.com/questions/610903/how-can-i-create-a-video-file-from-a-set-of-jpg-images
>
> Seems a lot more straightforward than using a video editor like openshot
> <http://www.openshot.org/> to combine them.
>
> After that, you can use the stabilization feature that you mentioned in
> Youtube to stabilize the result:
>
> http://lifehacker.com/5786091/stabilize-your-handheld-videos-with-youtube
>
> Wait, stop the presses.  I just noticed that ffmpeg has a deshake filter
> for automatically stabilizing video.  So if you don't want to limit
> yourself to youtube, it looks like it might do the job.
>
> https://video.stackexchange.com/questions/19089/youtube-like-video-stabilization-on-linux
>
> This is all stuff I haven't tried, so I'll defer to any LUGgers who've
> actually done it...  ;-)
>
>    Scott C.
>
      This smells like a great trilug meeting topic. Just sayin'...
>
> On 08/28/2017 10:28 AM, Brian via TriLUG wrote:
>> Hi Gang,
>>
>> I am still in my Monday-morning brain fog and can't figure out good
>> search terms to describe the following.
>>
>> I have seen some YouTube videos which have some sort of processing
>> applied which corrects for shaky camera work by constantly moving the
>> frame around in a larger area to keep the subject visually still.  It
>> has the appearance of constantly-varying letterboxing.
>>
>> I can't imagine people being patient enough to do this by hand, so
>> there must be some software that does it.  I just don't know what to
>> call the effect.
>>
>> Anyway, the point is I have some 350+ photos from last week's eclipse
>> in which the image gradually traverses the frame because my celestial
>> tracking mount didn't work out (the lens was too heavy for it).  I
>> want some easy way to process all the images to center the sun in the
>> frame.  Given the very sharp edges involved, it seems like it would be
>> an easy target for automation.
>>
>> Any suggestions?
>>
>> Thanks,
>> -Brian
>>
>> [1] - okay, my use case is a series of stills, but that's what video
>> is anyway!
>
>
> --
> Scott Chilcote
> scottchilcote at ncrrbiz.com
> Cary, NC USA
>
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