I have calculated at sensor reflectance for a multispectral image and performed atmospheric correction. The reflectance values for the visible and NIR bands are between 0.2 to 0.01 for surfaces, includng some vegetated areas.
Are reflectance values typically this low for multispectral imagery?
Ideally I'm trying to differentiate between types of vegetation and my spectral reflectance curves are almost flat. When I consult remote sensing books/papers I can see spectral reflectance curves that show a distinct difference between for example dry grass and forest.