----- Forwarded message from m...@uw.edu -----
Date: Thu, 6 Mar 2014 01:00:37 -0500
From: m...@uw.edu
Reply-To: m...@uw.edu
Subject: Re: photoediting
To:
"morphmet@morphometrics.org" <morphmet@morphometrics.org>
Andrea,
ImageJ has
plethora of functions to do what you want. You will need to play with
window/level (or brightness/contrast) settings to suppress or enhance the
features you want. To convert it to a binary image you can use the threshold
setting. The typical challenge with that is to come up with a threshold value
that can be determined objectively. If the image histograms are consistent or
close enough between your pictures, you can probably stick with a single value
for all your samples. However, if they greatly vary you may want to consider
applying an algorithm (the default threshold tool has an “auto” option,
but I do not know what algorithm that’s based on) to calculate the cutoff
value. There is a list of some of those functions:
Instead of regular ImageJ I suggest you
use Fiji (http://fiji.sc). It is ImageJ
on steroids.
I also found this tutorial, which seems
to cover most of the stuff you want:
Hope this
helps,
M
From: morphmet_modera...@morphometrics.org
Sent: Wednesday, March 5, 2014 9:23 PM
To: morphmet@morphometrics.org
Sent: Wednesday, March 5, 2014 9:23 PM
To: morphmet@morphometrics.org
----- Forwarded message from morphmet_modera...@morphometrics.org -----
Date: Fri, 31 Jan 2014 20:40:28 -0800
From: morphmet_modera...@morphometrics.org
Reply-To: morphmet_modera...@morphometrics.org
Subject: photoediting
To: morphmet@morphometrics.org
----- Forwarded message from andrea cardini <alcard...@gmail.com> -----
Date: Fri, 31 Jan 2014 06:01:57 -0500
From: andrea cardini <alcard...@gmail.com>
Reply-To: andrea cardini <alcard...@gmail.com>
Subject: photoediting
To: morphmet@morphometrics.org
Dear All,
please, any suggestion about free software for photo-editing?
I am looking for something that may help to
increase contrast, remove unwanted stuff and help
to extract the features I am interested in. At
some point, I'd like to have a black and white
image where only the features I am studying are visible.
I am mostly thinking about ridges or cusps of
mammal teeth but could also be something like an outline.
I'd greatly appreciate some advice also on
filters that one can use for these purposes.
Photoshop and ImageJ seem to have plenty of
options but I could not find a specific tutorial.
Thanks in advance for suggestions.
Cheers
Andrea
Dr. Andrea Cardini
Researcher in Animal Biology, Dipartimento di
Scienze Chimiche e Geologiche, Università di
Modena e Reggio Emilia, l.go S. Eufemia 19, 41121 Modena, Italy
Honorary Fellow, Centre for Anatomical and Human
Sciences, University of Hull, Cottingham Road,
Hull, HU6 7RX, UK & University of York, Heslington, York YO10 5DD, UK
Adjunct Associate Professor, Centre for Forensic
Science , The University of Western Australia, 35
Stirling Highway, Crawley WA 6009, Australia
E-mail address: alcard...@gmail.com, andrea.card...@unimore.it
WEBPAGE: http://sites.google.com/site/hymsfme/drandreacardini
Summary of research interests at:
http://www.dscg.unimore.it/site/home/ricerca/aree-di-ricerca/evolution-taxonomy-and-forensics.html
FREE Yellow BOOK on Geometric Morphometrics:
http://www.italian-journal-of-mammalogy.it/issue/view/405
or full volume at:
http://www.italian-journal-of-mammalogy.it/public/journals/3/issue_241_complete_100.pdf
Editorial board for:
Zoomorphology:
http://www.springer.com/life+sciences/animal+sciences/journal/435
Journal of Zoological Systematics and
Evolutionary Research: http://www.wiley.com/bw/journal.asp?ref=0947-5745&site=1
Hystrix, the Italian Journal of
Mammalogy: http://www.italian-journal-of-mammalogy.it/
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