flavio, thanks for this very valuable information. i guess people would estimate if you could include it into the manual at some appropriate location, e.g. as a note to the "effects" chapter. cheers, georg
On Tuesday 09 September 2008 18:41:40 flavio wrote: > Hi, there, > > > When I colour correct/manage whatever movie I'm doing, I always face the > same problems. With time, I've figured out a workaroud for both cases that > somewhat take time but become very precise and eventually compensate at the > end. > > For colour management, I use mostly brigh/cont, hue/sat, col bal and > videoscope (still, 4 effects!). What I do is: > - I create an additional video track, above or between the ones I am adding > the effect to. Then I name it "garbage" or "delete it!" or anything that > will let me know this is a temporary track; > - I copy/paste one asset - or series os assets that may have similar > light/colour conditions - to this track. If you double-click the asset, you > can (in this order) copy, mute it, move your mouse to the next track and > SHIFT-TAB it, and paste the video there. You'll realize all this is done > via shortcuts, so it's repetitive but somehow easy and > not-that-time-consuming; - I add the effects, keyframe them, finish > whatever I have to do with the asset regarding effects; > - Now here is the trick: I copy/mute/arm/paste it in the previous track. > Whenever you do that repeatedly, the video effects will be pasted besides > the other ones! It won't go down forever like when you just insert new > effects in a track - they remain as if the track had only, say, 4 effects! > So I'll just do that till the end of the movie and the whole track will > have effects related to each separate asset but occupy a space as if we had > only inserted four effects in the whole timeline! > > Now, the other process, when I have to precisely correct the colour of a > video, I use Gimp-Gap. I talked to Raffa once about this: gimp is way more > precise to do a proper colour correction of any image - and gimp-gap is > fine for videos. You'd then have to render it as uncompressed YUV and open > it in Gimp-Gap, colour correct it and re-export it. > > For the last year, I've been reading some technical books on photography > (btw, I can recommend Ansel Adams books and Ron Bigelow's articles at his > website for anyone interested in the subject) and was trying to find a > precise and safe way to guarantee a proper correction of colour casts. To > me, Cinelerra's histogram or white balance funcion are not precise the way > they have to be (note that I'm not talking about the colour coherence in > the video, as we can use Videoscope for that with very nice results). If > they could be integrated to gimp/gimp-gap to colour-correct (as an effect, > for example), it would be an immense and most-welcome evolution in this > area. > > The bad thing about this process, as you can imagine, is that it takes way > too much time, so I only do it in extreme cases, when I really want the > thing to be perfect, so be warned =) > > rock on, > flavio -- dr. kurt georg hooss kurts film / schoepfung & wandel breite strasse 6-8, d-23552 luebeck kurts-film.de _______________________________________________ Cinelerra mailing list [email protected] https://init.linpro.no/mailman/skolelinux.no/listinfo/cinelerra
