Boxing important part of a frame

[Evert Vorster]

Hi there, Mehdi.

Throwing a color clip on a timeline below your footage, and then scaling
and centering your clip over that color clip is probably the easiest way of
achieving a border around your clip.

As you can see, the steps are less than what it would take to set up a
pre-configured effect. Chances are that no effect like this will ever exist
in Kdenlive due to the fact that it is so easy to generate similar results
without an effect.

Kind regards,
Evert Vorster
Awesome Chapters Tours
http://www.awesomechapters.com
Tel: +264 (0) 811477690


On Fri, 26 Jun 2020 at 13:18, Massimo Stella <maxstar at tin.it> wrote:

>
> Hi Mehdi.
>
> There are different ways In Kdenlive to acheive the result you have
> created.
>
> One is cropping the picture with the Crop, Scale, Tilt filter, same as you
> did, and to put in a lower track underneath the cropped object what you
> want to see around it ( the same video treated in another way, a solid
> color, a pattern, a gradient, a picture, another video, something blurred,
> etc or whatever you need to show).
>
> Another way to do this is to use the Rectangle Alpha Mask (this is the
> specific tool for rectagular borders in Kdenlive) which creates a square
> mask around the object generating trasparent border to fill, as in the
> previous example, with anything you put under it.
> As you can see, the only parameters you have to set (same as for the
> cropping filter) are the dimension of the borders. So it's pretty automatic.
>
> Another option, if you need to create a free shape, is the use of the
> Rotoscoping.
>
> An Automask filter with tracking exists as well, but only to pixelate
> objects like people faces.
>
> These are the tools you generally find in other main professional
> applications too, to achieve this kind of result.
>
>
> Cheers.
>
> Massimo.
> Hi
>
> I was trying to signify an important part of a video for around 5 seconds
> by putting a color rectangle around it but I couldn't find any built-in
> effect to achieve this.
> Finally, I duplicated a cropped section of video just the size I wanted to
> signify, colorized it and put it over the normal track. This did the job
> but I was hoping there should already be an effect for this.
>
> Is there an effect to colorize/signify/amplify only a portion of a
> frame/track that I'm unaware of?
>
> Best regards
>
> -mehdi
>
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