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Re: AI-GEOSTATS: Kriging colour

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  • Laura Kracker
    Yes, in fact, check out this work by William Hargrove at Oak Ridge. It is a very effective way to visualize color data weighted by PCA results. His paper on
    Message 1 of 4 , Apr 24, 2001
      Yes, in fact, check out this work by William Hargrove at Oak Ridge. It
      is a very effective way to visualize color data weighted by PCA results.

      His paper on clustering of ecoregions:
      http://www.esri.com/library/userconf/proc97/proc97/to250/pap226/p226.htm

      His home page:
      http://research.esd.ornl.gov/~hnw/

      Laura Kracker

      Isobel Clark wrote:
      >
      > Benjamin
      >
      > Just a thought. Since your actual colour is a
      > combination of the three primary colours, could you
      > perhaps do a principal components analysis on the
      > three 0-255 colour levels?
      >
      > This would have two effects:
      >
      > (1) would give you variables which expressed the
      > 'combined' colour
      >
      > (2) would highlight the different 'populations' of
      > soil with markedly different colour characteristics.
      >
      > We have used a similar approach to distinguish between
      > limestone types in quarries and for 'brightness' of
      > china clays.
      >
      > Isobel Clark
      >
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      --
      Laura M. Kracker, Phd.
      Research Scientist/GIS Specialist
      JHT contractor to:
      Center for Coastal Environmental Health
      and Biomolecular Research (CCEHBR)
      NOAA/National Ocean Service
      219 Fort Johnson Road
      Charleston, SC 29412-9100
      Phone: 843-762-8640
      Fax: 843-762-8700
      e-mail: laura.kracker@...
      http://www.chbr.noaa.gov
      ---------------------------------------------

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