I have been provided with two data sets of the same area, one with normal RGB bands and one with NIR data. My problem is that since the NIR data is given as 3 bands, i am not sure how I should interpret this.
I am guessing that its normal in some data acquisition areas to collect NIR data with a DSL camera with some filters removed and thats why the data is captured over 3 bands. (but i really dont know much about this).
How do i transform the 3 bands of nir data into the one I need for my NDVI calculation?