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Last Post 09 Mar 2016 03:16 PM by  anon
Get statistics of ROI or Shapefile from a Landsat image
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anon



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09 Mar 2016 03:16 PM
    Hello, I am trying to run a linear unmixing (aka spectral mixture analysis) process on several hundred landsat images. The endmembers are taken from the image itself. I wrote a code using an evf vector file that worked well. I am updating the code now that we have a newer version of IDL and can't figure out how to do this. Essentially, I want the mean values for all bands from regions designated on the image as derived from the shapefile or roi (as a polygon or point). I am not sure how to get statistics using a shapefile. This seems like an easy to do. Please help.

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    09 Mar 2016 03:47 PM
    Hi Meghan, Have you tried using the TrainingClassificationStatistics task? In the example provided here http://www.exelisvis.com/...nStatisticsTask.html it appears mean is one of the properties returned. Good luck! Laura
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