Message-ID: <20030404124041.A672@fern.dsto.defence.gov.au>
Date: 2003-04-04T02:40:41Z
From: Paul White
Subject: advice on anlysing the spacing of growth rings
Hello,
I have an image of a fatigue crack that I want to analyse. It is simular
to a photograph of the cross section of a (non-circular) tree showing the
tree rings that indicate the growth of the tree. I would like to determine
the spacing of the repeated growth patterns without actually picking off
individual points (there are too many). Could someone give me an
indication of how I could tackle this. It may be similar to a geographical
mapping approach. Can anyone recommand any R packages that I should look
at ?
Thanks
Paul
Paul White
Defence Science and Technology Organisation
Department of Defence
Melbourne, Australia