I work with LS8-data in a mountainous area where the illumination is poor especially in the winter months. My thought is to use either a shadow mask or apply topographic correction.
I will use all the available data for my research area over five years - aka apply a multi-temporal approach year-wise for a NDVI-time series. Is there any way to implement e.g. the C-Correction in ENVI or what would be the best way to handle the topographic shadows?