Hello, i'd just want to extract from a camera the fee layer red, green and blue and then apply a delay on each to get different timing for different colors for an installation... is there a way to make it with unpack...
thanks
david
On Sun, 23 Aug 2009, t'es in t'es bat wrote:
and blue and then apply a delay on each to get different timing for different colors for an installation... is there a way to make it with unpack...
Yeault, i made dis patch, wit a diffeyrent delay on de tree channels.
http://gridflow.ca/gallery/rgb_delay.png
but no PiDiP, surry.
_ _ __ ___ _____ ________ _____________ _____________________ ... | Mathieu Bouchard, Montréal, Québec. téléphone: +1.514.383.3801
hola,
pdp/pidip have been all implemented in yuv colorspace, for performance reasons when computers were slower ( it's half the size of rgb )...
so you won't find a solution in pdp/pidip, but right now, we're making an opencv library for pd that is all implemented in rgb colorspace and i just added a pdp_opencv_channels object there, to separate R G & B channels it was actually something we had to do.
you have to compile it, it is not ( and will not ) be included in pd-extended, just get it from trunk/externals/pdp_opencv and read the INSTALL
saludos, sevy
t'es in t'es bat wrote:
Hello, i'd just want to extract from a camera the fee layer red, green and blue and then apply a delay on each to get different timing for different colors for an installation... is there a way to make it with unpack...
thanks
david
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Hello, then is there a way to separate the yuv layer and apply a delay on it ???
2009/8/23 ydegoyon@gmail.com ydegoyon@gmail.com
hola,
pdp/pidip have been all implemented in yuv colorspace, for performance reasons when computers were slower ( it's half the size of rgb )...
so you won't find a solution in pdp/pidip, but right now, we're making an opencv library for pd that is all implemented in rgb colorspace and i just added a pdp_opencv_channels object there, to separate R G & B channels it was actually something we had to do.
you have to compile it, it is not ( and will not ) be included in pd-extended, just get it from trunk/externals/pdp_opencv and read the INSTALL
saludos, sevy
On Wed, 26 Aug 2009, t'es in t'es bat wrote:
Hello, then is there a way to separate the yuv layer and apply a delay on it ???
You'd probably be disappointed by it. I found the channel separation to be a lot more enjoyable when each components has at least a bit of luma (luminosité) in it, whereas in YUV, all the luma is in the same channel (Y est une image en noir-et-blanc), and the two other channels only contains chroma (colour info not related to luma), and in that case, it's visually very hard to follow.
I did try the YUV mode with my patch before I sent it to you, but it didn't look good, so I reverted to RGB, and then I had the idea of designing a different colourspace especially so that the channel separation would be more interesting to look at than in RGB. But I don't know whether it's possible and whether there's any other reason why it might not be a good idea, and generally I haven't really thought about it yet.
Perhaps if you looked at the YUV mode of it, you'd think it's interesting, I don't know. But I'm sure you would agree that it's visually hard to follow.
_ _ __ ___ _____ ________ _____________ _____________________ ... | Mathieu Bouchard, Montréal, Québec. téléphone: +1.514.383.3801
-
Mathieu Bouchard -
t'es in t'es bat -
ydegoyon＠gmail.com