jack_stepeny Posted March 24, 2012 Report Share Posted March 24, 2012 I have created a NDVI image from LANDSAT TM data in erdas. Now I want to create a Layout for the NDVI image as well as need to reclassify the NDVI image in ArcGIS using Natural Breakings. My problem is that when I opt for the option No Color for the Background it also remove the 0 values from the NDVI image. I simply want to remove 0 background values and keep the 0 values from the NDVI image. Please suggest how to do that. Quote Link to comment Share on other sites More sharing options...
rahmansunbeam Posted March 24, 2012 Report Share Posted March 24, 2012 hello jack_stepeny, NDVI converts the spectral values between 0 and 1, so there must not be any background with value 0 in it. There are several ways you can avoid this, -clip/crop the background before you make NDVI, -substract dark objects (DOS) before NDVI, -restrict any calculation on background by delineating area with aoi/roi. You will be much happier if you use Imagine only. Quote Link to comment Share on other sites More sharing options...
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