I don't know if this will help, but there's a 'PixelSum' node that we use internally for measuring frame differences over a sequence. You start by supplying a frame difference (e.g. output of a Merge-difference node) and an optional mask of the region you want to difference, you then 'render' the node which saves a bunch of stats to the node's knobs.
Hope that helps, Dan. On Wed, Feb 3, 2016 at 11:36 PM, Charles Taylor <ctay...@spinvfx.com> wrote: > Since you need to make a curvetool anyway to sample different frames, I > think it's probably simplest to just straight-up use it... > > FWIW, we just eye-match that stuff. It's pretty quick if you know what > you're doing, definitely quicker than if a script did it. > > ./c.t > > > On 02/03/2016 06:34 PM, Vincent Langer wrote: > > I was thinking about the curveTool too - but maybe there is another python > way > > 2016-02-04 0:22 GMT+01:00 Charles Taylor <ctay...@spinvfx.com>: > >> You'd probably be better off with a merge set to difference and a >> curvetool, or a difference node and a curvetool. >> >> You're also probably best off matching first frame, last frame, middle >> frame, and then you'll have a smaller bounded area to search subsequently. >> >> ./c.t >> >> >> On 02/03/2016 06:20 PM, Vincent Langer wrote: >> >> Hi there, >> we have a couple of shots which have to be matched to retimed reference >> clips. >> >> The provided retime information does not give us enough precision. >> >> So the idea is to create a tool that analyses the difference between >> different images and creates a timeWarp or oFlow node to match the ref Clip. >> >> >> I did a little test with the .sample() function but it is pretty slow. >> >> >> Is there something maybe already implemented ? >> >> Or has anyone tried something like that or has a solution for this ? >> >> >> cheers, >> >> Vincent >> >> >> _______________________________________________ >> Nuke-python mailing listnuke-pyt...@support.thefoundry.co.uk, >> http://forums.thefoundry.co.uk/http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-python >> >> >> >> _______________________________________________ >> Nuke-python mailing list >> Nuke-python@support.thefoundry.co.uk, http://forums.thefoundry.co.uk/ >> http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-python >> >> > > > -- > Vincent Langer > Uhlandstr. 29 > 71634 Ludwigsburg > +49 176 965 177 61 > www.vincentlanger.com > > > _______________________________________________ > Nuke-python mailing listnuke-pyt...@support.thefoundry.co.uk, > http://forums.thefoundry.co.uk/http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-python > > > > _______________________________________________ > Nuke-python mailing list > Nuke-python@support.thefoundry.co.uk, http://forums.thefoundry.co.uk/ > http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-python > > -- Dan Ring, Ph.D. Lead Research Engineer The Foundry 31-36 Ormond Quay Upper Dublin 7 Ireland Tel: +353(0) 1 526-6788 Web: www.thefoundry.co.uk Email: dan.r...@thefoundry.co.uk The Foundry Visionmongers Ltd. Registered in England and Wales No: 4642027
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