Enhanced visualization of hyperspectral images

An enhanced visualization algorithm for hyperspectral images (HSI) is presented in this paper. The visualization is based on the projection onto color matching functions of the human vision system. A contrast enhancement procedure is introduced making use of multiband gradient information. Both visualization and enhancement are combined into a multiresolution framework using wavelets. The HSI is transformed into a specific representation (Multiscale Fundamental Form representation), in which the enhancement is performed at the level of the wavelet detail subbands, while the visualization is performed at the level of the low resolution subbands. The results are compared to state of art hyperspectral visualization algorithms.