[FFmpeg-user] Strange results with delogo filter, maybe a bug

sxe sxxe at gmx.de
Tue Aug 26 14:28:22 CEST 2014


To give some feedback on this.

I guess you were rigth when saying

> There is probably a good reason for this filter not supporting other colorspaces

I can see the rectangle but the color is not as you would expect it to
be. It is grey where you would expect a green tint in this example.
Anyway, the rest of the image is not altered at all, so that's a good
thing. :)

Just FYI.


On Tue, Aug 26, 2014 at 11:34 AM, Moritz Barsnick <barsnick at gmx.net> wrote:
> Hi Andy,
>
> On Tue, Aug 26, 2014 at 11:18:38 +0200, sxe wrote:
>> I hope so cause i have no idea what do do :) , i can test if you like
>> me to. I could build ffmpeg from git and apply the patch.
>
> What I also meant is that there may be side-effects to this. There is
> probably a good reason for this filter not supporting other
> colorspaces. My change may horribly break something, it's just a pure
> hack.
>
> That said, feel free to use if it serves your particular purpose. :-)
>
> And _do_ wait for proper feedback! There may be proper ways of
> converting yuvj420p to yuv420p with less visible "loss".
>
> Moritz
>
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