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CGTASSELEDCAPCOEFFS

CGTASSELEDCAPCOEFFS
  This function returns tasseled cap coefficients from various sources to perform
  the tasseled cap transformation on appropriate (e.g. LandSat) images. The program
  requires that one of the keywords be set.

Categories


    Utility
   

Keywords


    envi: in, optional, type=boolean
      Set this keyword to return the tasseled cap coeficients used by ENVI 4.8.
      These are reported (by ITTVIS) to be for LandSat-5 TM data, although others
      report these are in error for TM-5 data and really apply to TM-4 data.
      Reference: http://www.exelisvis.com/language/en-US/UserCommunity/UserForums/forumid/29/threadid/12985/scope/posts.aspx.
    etm: in, optional, type=boolean
      Set this keyword to return the tasseled cap coeficients proposed by the USGS for
      LandSat-7 ETM+ images. Note that these values should be applied to reflectances.
      Reference: http://landcover.usgs.gov/pdf/tasseled.pdf.
    imagine: in, optional, type=boolean
      Set this keyword to return the tasseled cap coeficients used by the ERDAS Imagine software
      for LandSat-5 data.
    ls4: in, optional, type=boolean
      Set this keyword to return the tasseled cap coeficients reported by Crist, Laurin and Cicone
      for LandSat-4 imagery. Reference: http://www.ciesin.org/docs/005-419/005-419.html.
    ls5: in, optional, type=boolean
      Set this keyword to return the tasseled cap coeficients reported by Crist, Laurin and Cicone
      for LandSat-5 imagery. Reference: http://www.ciesin.org/docs/005-419/005-419.html.
    mss: in, optional, type=boolean
      Set this keyword to return the tasseled cap coeficients originally reported by R.J Kauth and G.S. Thomas
      for MSS LandSat imagery. Reference: http://web.pdx.edu/~jduh/courses/Archive/geog481w07/Students/Marcello_TasselledCap.pdf.
      Also: http://www.sjsu.edu/faculty/watkins/tassel.htm.
    quickbird: in, optional, type=boolean
      Set this keyword to return the tasseled cap Graham-Schmidt coeficients reportedly used for Quickbird imagery.
      Reference: http://www.asprs.org/a/publications/proceedings/pecora16/Yarbrough_L.pdf
    tm: in, optional, type=boolean
      Set this keyword to return the tasseled cap coeficients originally proposed for TM imagery by Kauth and Thomas.
      Reference: http://web.pdx.edu/~jduh/courses/Archive/geog481w07/Students/Marcello_TasselledCap.pdf.
      Also: http://www.sjsu.edu/faculty/watkins/tassel.htm.

Examples


    tasseledCapTransformedImage = landsat_tm_image ## cgTasselecCapCoeffs(/TM)

Author


    FANNING SOFTWARE CONSULTING::
      David W. Fanning
      1645 Sheely Drive
      Fort Collins, CO 80526 USA
      Phone: 970-221-0438
      E-mail: david@idlcoyote.com
      Coyote's Guide to IDL Programming: http://www.idlcoyote.com

History


    Written, 24 August 2012, by David W. Fanning.

Copyright


    Copyright (c) 2012, Fanning Software Consulting, Inc.



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