Satellite Images of Sand Dunes Filtered by Means of GIMP Retinex

This is the second paper of a series which is discussing the several applications that Retinex filters can have for enhancing images. Applications are ranging from the images obtained by microscopes to the images coming from satellites. In the first paper, we considered the images from microscopes, here we will discuss how Retinex can help the investigation of the motion of sand dunes as detected by satellite imagery. The filter that we use is the GIMP Retinex, developed by Fabien Pelisson