Hello Friends, I have created NDVI image from TM data in Envi 4.5. When I display image it appears in gray scale (ie. black to white scale). I have used Tool>color mapping>envi colorr table options and selected blue to red option to see the no biomass feature in blue to high biomass feature in red. My questions are- 1) Is it possible to convert this continous scale information into different classes(based on interval). For example, If I do density slicing it gives an option to save the range into different classes. But not in this case. 2) How to make interval......from continous data scale Thanks PK