I've used a Landsat 8 image for vegetation analysis in an urban area. I've got a large maximum number of EVI value as shown in this image:
Is this normal in calculating EVI and NDVI? Because I know that value range in NDVI and EVI are between -1 and 1, although only 1 DN has max value.
And 2nd question is, what are the best vegetation indices for analyzing in urban areas with Landsat 8 images? I use ENVI apps to calculate band math.