If, by 'feature extraction', the colleague refers to classifying the
raster imagery pixels into discrete categores (e.g., vegetation types),
I would suggest looking at the 'r.' and 'i.' components of GRASS GIS,
which of course integrates well with R.
Hope this helps.
Rick R
Rawlins, Barry G wrote:
I have a colleague who is not familiar with R and we were discussing feature
extraction from multiple images (air photos, satellite based etc.). He uses a
commercial tool for feature extraction. Can anyone point me to a package in R
that does this? I have done a search but not found such a function. It is not a
procedure I am familiar with.
Many thanks, Barry
Dr Barry Rawlins
Sustainable Soils Team Leader
British Geological Survey
Keyworth
Nottingham
NG12 5GG
Direct tel: 0115 9363140
Mobile: 0788 4235473
homepage:
http://barryrawlins.googlepages.com<http://barryrawlins.googlepages.com/>
--
Rick Reeves
Scientific Programmer/Analyst and Data Manager
National Center for Ecological Analysis and Synthesis
UC Santa Barbara
www.nceas.ucsb.edu
805 892 2533
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