experimenting with frame differencing, etc, to detect motion could be
useful as well, hth in some way.
On Nov 29, 2007, at 5:33 PM, Jack Hayward wrote:
On Nov 29, 2007, at Nov 29, 2007 | 1:15 PM, Alexandre Van de
Sande wrote:
do you have a picture of a ball moving on the screen with qc or do
you
have a movie of a moving ball?
The former... although I'd like it if this would work with any image.
What I really want, from an algorithmic standpoint, is to be able to
take any source image, delay it, filter it, and recombine it with
the existing image.
I figure that if I can reduce the alpha in the filter section, then
I could control the lifetime of the trails.
In the example of the ball, I might have a sprite generating the
image of the ball, and LFOs modulating the X and Y coordinates so
that it moves around on the screen.
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