[[ Just befor sending I realize that the first message I sent fo [email protected] and not the list ]] There was formatting in the hushmail message I sent, and I'm not sure if any of the message got srubbed. The length of the message is just 2k which is well allowed. So I'll send link to the video I promised in a recontructed reply (didn't receive my own message).
Pls. find the link further down. > I have been working for weeks on end, and nevere imagined I would be > able to correct 1920x1080 shaky jumpy and jerky footage (handheld > mobile camera) to something imcomparably smoother and nicer, and quite > viewable. It's coming, I will try to demostrate in a tutorial video, > so it be clear how much Cinelerra can do. > > I used the motion plugin, and with rotation stabilization for most of > the length of the footage. > > However, it turns out that motion plugin with rotation, which is the > current plugin, can only stabilize when the footage is not mouch > distorted. > > I believe people familiar with these tools figure out what I am > saying, and in a day or two, I'll try and make the case for what would > be great to do next, and what would make the plugin much more > complete... > > I will try and make a clear case as far as an intermediate user can, I > am working hard, am doing my best. Pls. bear with me. > > And in the mean time, let me more imperfectly then with real example, > and just shortly, explain what I mean, in words. > > The screen in Cinelerra can be stabilize with motion plugin (rotation > set along with all necessary adjustments), if if fits the, I'll call > it B-frame screen, the one chosen to model the stabilization after > (term used in video encoding). I sure meant key-frames, not B-frames (message was written in the dead of morning) > > It must fit that B-frame screen in such way that it can be translated > or transposed parallel to it. > > As soon as we are talking such jerks and jumps or bumps into the hand > holding mobile camera (and some other cases), that is not anymore the > case. > > The plugin leaves a shaky footage, poorly stabilized. > > I hope it'll be much cleared for non-advanced users (this is > sufficiently so for the devs already) once I prepare the real world > stuff. > > I searched the mailing list and documentation and I have not found > that this is being developed in Cinelerra currenty. > > If it is, pls. ppint me to the righ place to try and find more about > it. > > What i missing I call Perspective correction after imagemagick's $ > convert ... -draw Perspective ... methed which gave me some results This first message of mine was in the dead of morning after a sleepless headachy night, let me coorect, that I tried to talk of "perspective correction" after the $ convert ... -distort Perspective ... method in the imagemagick > (but at such huge expense of time that is is not really reasonably > useable) where Cinelerra's motion plugin failed. > > Bear up with me, pls! It's not a matter of a quarter of an hour to > make this case, it is possibly up to a day to go,, not more, > hopefully! > The video, part 1, without the perspective correction talk, is here: http://youtu.be/jWqDhFpcRjk Lectio 12, Cinerella Morion Stabilization (Krug za Trg) PART 1 More time needed to try and present the case for perspective correction (again, as user). No replies yet, but I can still assure you that 1) motion stabilization sure is an itchy topic 2) perspective correction would be great! I spent a lot of time to make that video, and it is unfinished, for me, but I can tell that the '-distort Perspective' method did not really get me anything useful, and it is a pain to do those neverending manual attempts on single frames. What I am saying still can be of much with without the second part of my real world, and I mean the "Lectio 12 Cinelerra Motion Stabilization PART 2" (which I intend to call the second part). But I can give those manual commands on the single frames gotten with $ ffmpeg -i VIDEO.mkv -f image 2 DIR/SINGLE-FRAMES-%5d.png (that ffmpeg command gives you exact frames, 30 per second in my case, in PNG format) [[ that can later be rolled back into video with: ffmpeg -r 30 -i DIR/SINGLE-FRAMES-%5d.png -map 0:v -c:v libx264 -g 10 \ VIDEO_fromPNGs.mkv ]] Let me see... rm Try03/ts-03684.png && convert O/ts-03684.png -virtual-pixel black \ -distort Perspective \ '0,0,0,0 0,1080,0,1080 1920,-15,1920,0 1920,1080,1920,1080' \ -define png:color-type=6 -trim -repage -1-1\! \ Try03/ts-03684.png which is a real world command I used in another box of mine, where I don't know if the -define option is necessary, but the other ones are... Real world command where Try03 is dir for trying and O is the dir of original frames. Pls. somebody gives us feedback, else I get impression I'm boring you... :-) I used Hushmail to post this, and I'll probably go back now to using my name and contacts. I just really like to be off surveillance for the sake of the beauty of privicy, and so I used Hushmail. Miroslav Rovis [email protected] #rarely used, regime-pestered [email protected] #rarely used, regime-pestered 01 660 2633 091 266 0202 #=== was sentenced to jail, 2 ys on parole, for political views, essentially http://www.croatiafidelis.hr/Miroslav_Rovis_politicki_progon/ # but no English there at this time http://www.exDeo.com http://groups.google.com/forum/?fromgroups#!forum/croatian-news http://www.youtube.com/user/miroR2 http://vimeo.com/user9621785 _______________________________________________ Cinelerra mailing list [email protected] https://lists.skolelinux.org/listinfo/cinelerra
