R help - Jan 2011 - Madogram, rodogram, semi-variogram of satellite imagery

Greetings!

Is there in any package for R which can help me generate madogram, rodogram,
semi-variogram, cross variogram from landsat imagery. I intend to select
portions of large imagery (i.e., obtain subsets) and generate the above said
texture layers. A simple Google search led to me a result suggesting
SpatialExtremes for generating madograms. However I am not sure about its
capability to generate one for image layers. I am a beginner level user in R
and that's why I am posting this question to give me a quick start.

Thanks and regards,

Chethan S.

-- 
Chethan S.
PG Student | Remote Sensing and Geographic Information Systems
National Institute of Technology Karnataka | Surathkal
Karnataka | India - 575 025**

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