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07/05/12 07:20 AM
Re: NDVI - preprocessing [re: samrae]Report this article as Inappropriate to us !!!Login to Reply

NDVI ranges from -1 to +1. Green vegetation is closer to +1. Sometimes it is converted to digital numbers (e.g., 8-bit 0-255), but that is not as accurate. If you are using ENVI, you could run the simple Landsat calibration and then calculate NDVI, but the amount of pre-processing depends upon the atmospheric conditions of the scene and the degree of accuracy you need. I'd check out a few journal articles for more advice.

Entire thread
SubjectPosted byPosted on
*NDVI - preprocessing samrae   06/22/12 07:38 AM
.*Re: NDVI - preprocessing jesspinto   03/23/13 02:30 AM
.*Re: NDVI - preprocessing mali   06/06/16 04:52 AM
.*Re: NDVI - preprocessing pbeaty   11/29/12 04:49 AM
.*Re: NDVI - preprocessing DrGuy   12/05/12 07:07 AM
.*Re: NDVI - preprocessing DrGuy   12/05/12 07:12 AM
.*Re: NDVI - preprocessing LColson   07/05/12 07:20 AM
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