Rank: 474 based on 234 downloads (last 30 days) and 5 files submitted
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Nicholas Howe

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Company/University
Smith College

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Professional Interests:
Computer vision

 

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Files Posted by Nicholas View all
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08 Apr 2009 Published M-Files MATLAB Contest - creativity, tweaks, and innovations A late entry in the spring 2009 Matlab programming contest. Author: Nicholas Howe vis2009, contest 11 2
  • 1.0
1.0 | 1 rating
08 Apr 2009 Published M-Files Spring 2009 MATLAB Contest - creativity2 Added another graph to Rafal Kasztelanic's creative entry. Author: Nicholas Howe vis2009, contest 15 2
  • 1.0
1.0 | 1 rating
19 Jul 2007 Screenshot Better Skeletonization Provides an alternative to the image toolbox skeletonization implemented in bwmorph. Author: Nicholas Howe alternative, image process, binary images, morphology, segmentation, skeletonization 88 11
  • 5.0
5.0 | 8 ratings
16 Feb 2007 Screenshot Joggle Board Generator Generate 5x5 joggle boards Author: Nicholas Howe letter, joggle, word games, games 12 0
15 Mar 2005 Screenshot Foreground segmentation Uses graph cuts to segment foreground objects from a static background in video. Author: Nicholas Howe background segmentati..., foreground segmentati..., motion segmentation, morphology, segmentation 108 6
  • 4.125
4.1 | 8 ratings
Comments and Ratings by Nicholas
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13 Nov 2009 Anaskel written in Matlab Translated anaskel.cpp into Matlab Author: Matt Fetterman

Good idea to port this to a .m file. Thanks for doing it!
Comments and Ratings on Nicholas' Files View all
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16 Sep 2009 Better Skeletonization Provides an alternative to the image toolbox skeletonization implemented in bwmorph. Author: Nicholas Howe MacMinn, Christopher

With regard to my question above (15 Sep 2009), I think I've figured it out -- it looks like the local radius output of the function skeleton() is actually the radius SQUARED. Take the sqrt to get the radius in pixels.
15 Sep 2009 Better Skeletonization Provides an alternative to the image toolbox skeletonization implemented in bwmorph. Author: Nicholas Howe MacMinn, Christopher

This package is very useful.

A question: does anyone know what the local radius values correspond to, or what units they are measured in? They are not in pixels.
03 Sep 2009 Better Skeletonization Provides an alternative to the image toolbox skeletonization implemented in bwmorph. Author: Nicholas Howe Fetterman, Matt

It is very good. I have suggestions for additional features if you are interested in collaboration.
23 Jun 2009 Better Skeletonization Provides an alternative to the image toolbox skeletonization implemented in bwmorph. Author: Nicholas Howe Ta, Casey

For those having trouble compiling skeleton.m and anaskel.m, I had the same issue at first. The Lcc-win32 C 2.4.1 compiler that comes with MATLAB wouldn't compile these files. You'll have to try a different compiler. These files compiled just fine for me after I chose Microsoft Visual Studio 2008 in mex -setup.
09 Apr 2009 Spring 2009 MATLAB Contest - creativity2 Added another graph to Rafal Kasztelanic's creative entry. Author: Nicholas Howe Hull, Doug

To answer the question of using data not normally on the MATLAB path, I offer the following modification.
 
if ~exist('contest_data.mat','file')
    warning ('This was an entry to the MATLAB programming contest (http://www.mathworks.com/contest/datavis/home.html). Please load the contest data and unzip it to place contest_data.mat on your MATLAB path.')
    web('http://www.mathworks.com/matlabcentral/fileexchange/23509?controller=file_infos&download=true')
end
Top Tags Applied by Nicholas
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contest, morphology, segmentation, vis2009, alternative
Files Tagged by Nicholas View all
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Updated   File Tags Downloads
(last 30 days) 		Comments Rating
08 Apr 2009 Published M-Files MATLAB Contest - creativity, tweaks, and innovations A late entry in the spring 2009 Matlab programming contest. Author: Nicholas Howe vis2009, contest 11 2
  • 1.0
1.0 | 1 rating
08 Apr 2009 Published M-Files Spring 2009 MATLAB Contest - creativity2 Added another graph to Rafal Kasztelanic's creative entry. Author: Nicholas Howe vis2009, contest 15 2
  • 1.0
1.0 | 1 rating
06 Apr 2009 Published M-Files meet the family Visualisation of a family tree in the programming contest. Author: Nathan vis2009, contest 20 4
  • 2.33333
2.3 | 3 ratings
19 Jul 2007 Screenshot Better Skeletonization Provides an alternative to the image toolbox skeletonization implemented in bwmorph. Author: Nicholas Howe alternative, image process, binary images, morphology, segmentation, skeletonization 88 11
  • 5.0
5.0 | 8 ratings
16 Feb 2007 Screenshot Joggle Board Generator Generate 5x5 joggle boards Author: Nicholas Howe letter, joggle, word games, games 12 0
 

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