Erdas Tutorial- 9 | Supervised Classification of Satellite Image in ERDAS | Recode, Area Calculation

[@MohammedahmebOmer-zv9hh]

Very good

[@LearnRSGIS]

Thanks

[@leenlutfi4802]

if i want to study the urban area, should i do the NDVI also or smth else?

[@LearnRSGIS]

NDVI or other indices you can do for extract the unban area properly

[@raychan522]

Hi, may I ask if, after merging multiple sampling points into one class, I must delete those separate sampling points as you did? Otherwise, I cannot precisely classify each class?

[@LearnRSGIS]

Yes that's true

[@raychan522]

@@LearnRSGIS Brilliant! Thanks!