I am working with 3D (stereoscopic) material. After editing, I render the project to anaglyph 3D, i.e. green/magenta.
To do so, I apply the SOP/SAT effect to the clips for the left and right eye views and add an addition transition.
This results in a correct full colour anaglyph 3D video.
So here the issue:
If I save a frame from the monitor, I get a perfect PNG that looks exactly the same as when I do the whole procedure manually in Gimp.
If I render to DNxHD (custom render profile), I get the same nice quality when playing the video in i.e. VLC.
But if I render to H.264, quite some crosstalk/ghosting occurs, so I assume that there is some quality sacrifice impacting the colours that causes this.
This can be compensated with adjusting colours (saturation, ...) in VLC or other players to some extent, but the quality is never as good as with PNG or DNxHD.
I also tried other formats (MPEG2/4, ...) but it is either the same or even worse.
Finally my question:
Are there any ffmpeg/X264 parameters that could be related to this, that I could set to avoid this quality loss? I wouldn't mind if this would come with the price of larger files or so. I already played with some parameters but without success.