The overall objective of SLUMAP is to propose an open-source framework that allows for the processing of remote sensing images for (i) providing information on the location and extension of slums within a city and (ii) characterizing the physical environment within slums (i.e., in terms of greenness, built-up density, etc.) at limited cost. Our methods will be tested on a set of three sub-Saharan cities containing slums with different characteristics, namely Nairobi (Kenya), Kisumu (Kenya) and Ouagadougou (Burkina Faso).