[PD] video bluescreen

[mark edward grimm]

http://megrimm.net/software/green-screen-pd-0.01/green-screen-pd.zip

this sort of works although its still pretty sloppy. didn't try with screen yet but with the help of iohannes and jacks color picker examples one should be able to key out any solid color from a video just by selecting it in a gem window.

works on my side on osx.

mark

  


--- On Wed, 2/4/09, Garrett Lynch <lists at asquare.org> wrote:

> From: Garrett Lynch <lists at asquare.org>
> Subject: Re: [PD] video bluescreen
> To: pd-list at iem.at
> Date: Wednesday, February 4, 2009, 5:31 AM
> Hi
> 
> I've triedpix_background and can't see how two
> images are fed in (but it's late and I need to come back
> to it again later in the week).  I had already tried
> pix_chroma_key without much success but I'll have a look
> at this tutorial and see if it helps.  Again if anyone has a
> simple example that would be great but I'll keep
> chipping away at it in the meantime.
> 
> a+
> gar
> 
> On 3 Feb 2009, at 19:41, Martin Schied wrote:
> 
> > Hi,
> > 
> > Garrett Lynch wrote:
> >> I'm trying to put together a video bluescreen
> and I'm just not finding the right object I think. 
> pix_multiply sort of does what I want by dropping out white
> in a video and replacing it with another video but how do I
> get this working with a defined colour (i.e. not necessarily
> white but the blue or green normally used in studios). 
> There seem a few objects that deal with different ways of
> mixing images/videos pix_mask, pix_mix, pix_composite etc. 
> Which is the right one to use?  Thanks in advance.
> > [pix_chroma_key] could do what you need. For higher
> quality results you'll have to use several objects and
> use some compositing techniques like explained here:
> > 
> >
> http://www.blendedplanet.com/?Freebie_Tutorials:The_Ultimate_Keyer
> > 
> > It's for blender3d and probably overkill for your
> needs but you can use some of its basic principles in GEM
> too.
> > 
> > - btw has anyone done something like that in pd? I
> only used it in blender some time ago.
> > 
> > cheers,
> > Martin
> > 
> 
> _________________
> Garrett at asquare.org
> http://www.asquare.org/
> http://www.asquare.org/networkresearch/
> 
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