I am working with high-res, multispectral band imagery (with R,G,B, Near IR bands). I want to be able to find the surface reflectivity of just roofs, specifically contained within the rooftop outline shapefile I have.
I am not exactly sure which tools I need to contain the imagery pixels (in .tiff format) within the shapefile, and how to represent an average pixel (reflectance) value for the rooftop itself.
Can anyone offer me some advice, or a place to start!
Thanks
