Hi all,
I’m a fairly new user to grass and am trying to classify imagery using unsupervised and supervised classification techniques, however I’m looking for some clarification in grouping imagery using i.group. My basic understanding is that a group is a set of imagery i.e RGB, PAN, NIR … what then is the subgroup?
The data that I’m analyzing is digital orthophoto acquired using vexcel ultracam and has the following spectral resolution:
PAN 390-690nm
BLUE 390-470nm
GREEN 420-580nm
RED 620-690nm
NIR 690-900nm
Any information would be much appreciated
Cheers