zabdi3l Posted November 6, 2012 Report Share Posted November 6, 2012 Hi I tried to made spectral analisys to ASTER image. I have mi 3A level ASTER image in .hdf format. I use ENVI With ENVI I open the .hdf and ENVI make auto-correct for ASTER Radiance I re-size the SWIR band to 15m pixel I made layer stacking to VNIR_SWIR bands and convert to .BIL With the VNIR_SWIR .BIL image a made a correct atmospheric correction with FLAASH to convert radiance to reflectance I resample te USGS spectral library to ASTER I use the mapping method Spectral angled mapper I change the Y scale from the spectral library to 10000 to si the values 10*4 to have the same values from my image Z values for spectrum I select for example from the spectral library Kaoli to use in spectral angle mapper and in Maximun angle (radiand) I change to 1 because in .100 this dont show me nothign in SAM classification But the problem is for the al spectral I made this show me the same pixels Quote Link to comment Share on other sites More sharing options...
3dbu Posted November 6, 2012 Report Share Posted November 6, 2012 check the envi help there you get some help of this topic...good luck. Quote Link to comment Share on other sites More sharing options...
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