A remote sensing and image analysis software package produced by Exelis Visual Information Solutions (Exelis VIS).

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4
votes
3answers
2k views

Manually edit a raster to improve a classification?

I have a land cover classification derived from Landsat TM imagery - I created this classification using ENVI. I would like to edit individual and groups of cells in some areas of the classification ...
3
votes
2answers
3k views

How to repair topology of a shapefile?

I performed an object-based image analysis using ENVI EX, and each of the classified features were exported as a shapefile. I transferred those shapefiles into ArcMap 10, and tried to intersect them ...
3
votes
3answers
929 views

Problem with NDVI image value

I'm really happy to find this website. It is very helpful for the learners of Arcgis. Now I wanna ask a question. When i open NDVI image in ENVI, its value is still within the range (-1 to 1). But ...
-2
votes
1answer
796 views

Image classification [closed]

How can I do classification based on NDVI image. What kind of process and model can do it? Thanks a lot