I have created a NDVI image from Landsat 7 data using ERDAS (veg_NDVI.gmd). This model was already in ERDAS 9.3. After creation the final output visually highlighting vegetative areas but the value showing 0-255. But theoretically it is known that the NDVI value ranges from (-1) to (+1). Please let me be clear about this confusion and suggest the right way.
أكثر...
أكثر...