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   Author  Topic: Image Filters  (Read 2182 times)
jbk303


Image Filters
« on: Oct 13th, 2003, 11:36pm »

Anybody have any good articles on image filtering? The two examples are a little hard to decode and I cant find much understandable online.
Thanks in advance,
Josh
 
Jerronimo

WWW
Image Filters
« Reply #1 on: Oct 14th, 2003, 4:24am »

look around on the net for Convolution Matrices.
 
You also might want to check some of Paul Haeberli's docs and experiments over at the SGI Grafica Obscura... An awesome site that sadly hasn't been updated in years. :[
 
- http://www.sgi.com/grafica/matrix/ Convolution Matrices
- http://www.sgi.com/grafica/synth/ Synthetic lighting
- http://www.sgi.com/grafica/interp/ Image Interpolation/Extrapolation
 
eternaluxe


Re: Image Filters
« Reply #2 on: Oct 14th, 2003, 6:21pm »

Here is the first in a series of image filtering artcles using c# and gdi+, languages I myself are not familiar with, but the code is straight forwards and shouldn't be dificult to translate:
- http://www.codeproject.com/cs/media/csharpgraphicfilters11.asp
 
Jerronimo

WWW
Re: Image Filters
« Reply #3 on: Oct 14th, 2003, 7:33pm »

You also might want to check out some of Paul Debevec's work for inspiration...
  http://www.debevec.org/
 
Lots of cool graphical projects there.  One involved mapping an environoment onto an object after it was photographed.  (More synthetic lighting, but with a few hundred point sources instead of just the three of the Grafica Obscura example.)
 
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