click to view the MPEG movie (cliquez pour voir le film MPEG)

Texture animation by means of the generalized Fourier filtering process [Animation de texture grâce à un filtrage de Fourier généralisé].




Sixteen frames from the generalized filtering process. The "seed" picture (STAR, see figure "Four tool pictures") providing, after an appropriate rotation, the kernel picture (not displayed on this figure); denoting R the rotation operator, each frame of this picture can be defined as: 
                    GF(SCM1(GF(STAR,R(STAR,angle))),GAUSS)
where angle varies within [0,pi/2] with a step of pi/32.

(see a blow up of the lower left picture with another color palette)


(this picture was created on 01/13/1994)
(this page -belonging to the CMAP28 site- was last updated on 03/09/2010 20:02:21 -CET-)


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Copyright (c) Jean-François Colonna, 1994-2010.
Copyright (c) France Telecom R&D and CMAP (Centre de Mathématiques APpliquées) / Ecole Polytechnique, 1994-2010.