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[Octave-bug-tracker] [bug #56141] [octave forge] (image) bwmorph option
From: |
Nicholas Jankowski |
Subject: |
[Octave-bug-tracker] [bug #56141] [octave forge] (image) bwmorph option 'endpoints' not implemented |
Date: |
Mon, 22 Apr 2019 22:12:20 -0400 (EDT) |
User-agent: |
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36 Edge/16.16299 |
Follow-up Comment #15, bug #56141 (project octave):
I spent a little time looking at any other algorithms, and haven't found many.
One thing a number of people on stackexchange pointed to was called the 'hit
and miss' algorithm. Even after reading about it I don't get the meaning of
the name, but the description is at:
http://homepages.inf.ed.ac.uk/rbf/HIPR2/hitmiss.htm
according to them, endpoints of a skeleton (1 pixel wide) image is
accomplished by applying all four rotations of the :
X X X
0 1 0
0 0 0
stencil (X indicates you don't care what that cell is, any combination of 1s
and 0s will pass)
This makes perfect sense, and I could code up a quick function to generate a
LUT, but it should give a zero for the first example in Comment #7 and the
second example in Comment #11.
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- [Octave-bug-tracker] [bug #56141] [octave forge] (image) bwmorph option 'endpoints' not implemented, (continued)
- [Octave-bug-tracker] [bug #56141] [octave forge] (image) bwmorph option 'endpoints' not implemented, Nicholas Jankowski, 2019/04/20
- [Octave-bug-tracker] [bug #56141] [octave forge] (image) bwmorph option 'endpoints' not implemented, Nicholas Jankowski, 2019/04/20
- [Octave-bug-tracker] [bug #56141] [octave forge] (image) bwmorph option 'endpoints' not implemented, Nicholas Jankowski, 2019/04/20
- [Octave-bug-tracker] [bug #56141] [octave forge] (image) bwmorph option 'endpoints' not implemented, Nicholas Jankowski, 2019/04/20
- [Octave-bug-tracker] [bug #56141] [octave forge] (image) bwmorph option 'endpoints' not implemented, Avinoam Kalma, 2019/04/21
- [Octave-bug-tracker] [bug #56141] [octave forge] (image) bwmorph option 'endpoints' not implemented, Nicholas Jankowski, 2019/04/21
- [Octave-bug-tracker] [bug #56141] [octave forge] (image) bwmorph option 'endpoints' not implemented, Nicholas Jankowski, 2019/04/21
- [Octave-bug-tracker] [bug #56141] [octave forge] (image) bwmorph option 'endpoints' not implemented, Avinoam Kalma, 2019/04/22
- [Octave-bug-tracker] [bug #56141] [octave forge] (image) bwmorph option 'endpoints' not implemented, Avinoam Kalma, 2019/04/22
- [Octave-bug-tracker] [bug #56141] [octave forge] (image) bwmorph option 'endpoints' not implemented, Avinoam Kalma, 2019/04/22
- [Octave-bug-tracker] [bug #56141] [octave forge] (image) bwmorph option 'endpoints' not implemented,
Nicholas Jankowski <=
- [Octave-bug-tracker] [bug #56141] [octave forge] (image) bwmorph option 'endpoints' not implemented, Nicholas Jankowski, 2019/04/23
- [Octave-bug-tracker] [bug #56141] [octave forge] (image) bwmorph option 'endpoints' not implemented, Avinoam Kalma, 2019/04/23
- [Octave-bug-tracker] [bug #56141] [octave forge] (image) bwmorph option 'endpoints' not implemented, Nicholas Jankowski, 2019/04/23
- [Octave-bug-tracker] [bug #56141] [octave forge] (image) bwmorph option 'endpoints' not implemented, Avinoam Kalma, 2019/04/28