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Watersheds and Label_Region for 1d
- Subject: Watersheds and Label_Region for 1d
- From: Ben Tupper <tupper(at)seadas.bigelow.org>
- Date: Thu, 06 Jul 2000 13:43:00 -0400
- Newsgroups: comp.lang.idl-pvwave
- Organization: Bigelow Laboratory for Ocean Sciences
- Xref: news.doit.wisc.edu comp.lang.idl-pvwave:20132
Hello,
I want to perform something similar to the WATERSHED function but on a
1d vector rather than an 2d array. Ultimately,
I want to separate overlapping cells in digital images of plankton. It
is possible to perform a watershed operation
on one of my 2d images... but I am hoping to kill a number of bird's
with one stone by performing a watershed on a horizontal
profile of an image.
In order to do this I need to mimic the LABEL_REGION function on a
vector. I can think of a number of
ways of doing this... but they seem computationally expensive (lots of
WHERE's and connectedness checking.)
Am I reinventing the wheel? If so, where should I look for existing
routines? (I have checked the usual caches of
routines available from David F's links page.)
Thanks,
Ben
--
Ben Tupper
Bigelow Laboratory for Ocean Science
tupper@seadas.bigelow.org
pemaquidriver@tidewater.net