Re: Definition of a (Gabor?) filter

The symbols don't make much sense without specification, but if I
guess this looks like a difference-of-Gaussian (DoG) filter. Check
this: http://fourier.eng.hmc.edu/e161/lectures/gradient/node11.html

Actually, it's an inverse DoG, so its shape is similar to a Gabor
indeed, but since a Gabor filter is a Gaussian-windowed sinusoid the
mathematics seem to be not equivalent. But I don't know that for sure.

Matthias

On 18 Jul., 12:14, ist <say...@xxxxxxxxx> wrote:
Hi,
In a paper, there is a definition of a band-pass filter for a specific
purpose. However, no description is given about the filter, only the
definition which can be seen at:

http://img260.imageshack.us/my.php?image=clipboard01pi1.png

Can anybody give a hint about that filter for me to implement?

Thanks...


.

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