2

I have calculated atmospherically corrected reflectance values for Landsat 8.

From that, I am getting correct values of NDVI in QGIS, but for EVI I am not getting the correct values. For some images it goes beyond 1 and for others it shows black output in QGIS.

I am using the EVI formula derived for MODIS.

closed as unclear what you're asking by Jason Scheirer, whuber Aug 6 '14 at 21:35

Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.

  • 1
    Could you please include the EVI implementation you used in QGIS? – Aaron Aug 6 '14 at 19:27
1
EVI = 2.5 * (NIR-Red)/(NIR+6*Red-7.5*Blue+1) 

I have used this formula in the raster calculator of QGIS.

Not the answer you're looking for? Browse other questions tagged or ask your own question.