Suggestions for locked on stab effect

[farid abdelnour]

Salut Roxane,

This is a good idea! It reminds me of this request:
https://invent.kde.org/multimedia/kdenlive/-/issues/438

Maybe you can complement it with more info if so, otherwise do open a new
ticket.

Cheers :)





Em seg., 15 de fev. de 2021 às 06:31, Arkengheist <arkengheist at gmail.com>
escreveu:

> Hello!
>
> I recently discovered this "locked-on stabilization" effect, which
> basically has an object in the center that doesn't move while the rest of
> the image does. I attempted to recreate it, and succeeded, here's what I
> made: https://youtu.be/SIFxrArxI7s.
>
> The thing is, to make this, I first used Motion tracking, copied the data
> and used the most adapted software known to man: a spreadsheet... I
> basically formatted the data into columns and lines for positions and
> dimensions for each frame, and then I modified the coordinates in a second
> page (basically new x = old x1 - old x, with x1 the first coordinate, and x
> a x position), copied that, and input it into a Transform effect (and
> zoomed in a little with a Composite transition).
>
> While it worked fine, the formatting takes a few steps, so I was wondering
> if it was possible to implement this effect into kdenlive. I'm pretty sure
> it wouldn't be too difficult, i think you would just need a short program
> to modify the data (but then again, I'm not sure how the motion tracking
> effect works in the first place). It could be either added in the current
> motion tracker, and with a second button to copy the "stab" data, or
> another, i'm not sure what's the best way.
>
> All the best,
> Roxane
>
> PS: I wasn't sure where to send this, I hope this was a good option
>


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