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From: heimes@spva.ph.ic.ac.uk (Frank Heimes)
Subject: [Q] Need c-source for 'pgmcanny'
Message-ID: <1994Nov28.221305.6755@cc.ic.ac.uk>
Followup-To: poster
Nntp-Posting-Host: prawn.sp.ph
Reply-To: heimes@spva.ph.ic.ac.uk
Organization: Imperial College of Science, Technology, and Medicine, London, England
Date: Mon, 28 Nov 94 22:13:05 GMT
Lines: 34

Hi,

I've got an executable for a canny edge detector,
that runs on pgm files and prints messages like:

a,b,c: 1.000000,0.882497,0.882497
G[0]: 0.146687
dG[0]: 0.000000
D2G[0]: 0.600000
a,b,c: 0.606531,0.882497,0.324652
G[1]: 0.096219
dG[1]: -0.557844
D2G[1]: -0.389994
a,b,c: 0.135335,0.324652,0.043937
G[2]: 0.026734
dG[2]: -0.280716
D2G[2]: -0.134799
a,b,c: 0.011109,0.043937,0.002187
G[3]: 0.003036
dG[3]: -0.041749
D2G[3]: -0.011109
canny_core: smooth pic
canny_core: find grad
canny_core: non-maximum suppression
canny: about to track edges
thresholding_tracker: tracking edges, high=255, low=1

Unfortunately, the guy I got it from doesn't have
the source-code any more.

Can You help out ?

Cheers,
       Frank Heimes
