Path: news.mathworks.com!not-for-mail
From: "Sven" <sven.holcombe@gmail.deleteme.com>
Newsgroups: comp.soft-sys.matlab
Subject: Regionprops orientation in 3d?
Date: Wed, 17 Dec 2008 22:26:03 +0000 (UTC)
Organization: The MathWorks, Inc.
Lines: 10
Message-ID: <gibu9r$1sb$1@fred.mathworks.com>
Reply-To: "Sven" <sven.holcombe@gmail.deleteme.com>
NNTP-Posting-Host: webapp-05-blr.mathworks.com
Content-Type: text/plain; charset="ISO-8859-1"
Content-Transfer-Encoding: 8bit
X-Trace: fred.mathworks.com 1229552763 1931 172.30.248.35 (17 Dec 2008 22:26:03 GMT)
X-Complaints-To: news@mathworks.com
NNTP-Posting-Date: Wed, 17 Dec 2008 22:26:03 +0000 (UTC)
X-Newsreader: MATLAB Central Newsreader 1326470
Xref: news.mathworks.com comp.soft-sys.matlab:507629


Hi guys,

I'm running with MATLAB 2007b, and the help section for regionprops says that the "Orientation" and "major/minorAxisLength" properties are only available for 2d image inputs.

I've read somewhere that regionprops has been given a few extras in the latest MATLAB version. Can someone tell me if the "Orientation" property has been extended to multiple dimensions?

I'm essentially looking a various blobs in a 3d voxel volume, and I'd like to measure their Major axis direction in this 3d space.  If the latest MATLAB regionprops can't do this natively, can someone suggest a function/tool that can? A cursory search of the file exchange hasn't yet turned up anything...

Thanks,
Sven