WAVELET TRASNSFORM & EDGE DETECTION

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1 total messages Started by John J. Sasso Jr. Fri, 09 Oct 1992 20:21

#585

Author: John J. Sasso Jr.
Date: Fri, 09 Oct 1992 20:21

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Hi!

   I have been doing some reading on the use of the wavelet transform for
multiscale edge detection, all of which were papers by Mallat et.al.
I have a basic understanding of the concepts behind edge detection using
wavelets, but I don't know how to actually implement it.

   I am taking a course in computer vision and have done filtering with
3x3 filter operators, and also 3x3 Sobel operators.   However, I would
appreciate it if anyone can give me suggestions on how I implement the
wavelet transform to edege detection.  I want to apply it to 256x256x8
greymap images (PGM images).   Do I use a 3x3 filter?  A diffrent size?
Are the wavelet coeffs. the elements of the filter operator?  What else
is there for me to know?

    I appreciate all the help I can get, because I want to use this as
a class demonstration.   If there are any articles on wavelets for image
processing, could you please list them?

      Thank you very much

      John

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