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Paper details
Number 4 - December 2015
Volume 25 - 2015
High dynamic range imaging by perceptual logarithmic exposure merging
Corneliu Florea, Constantin Vertan, Laura Florea
Abstract
In this paper we emphasize a similarity between the logarithmic type image processing (LTIP) model and the Naka–Rushton
model of the human visual system (HVS). LTIP is a derivation of logarithmic image processing (LIP), which further replaces
the logarithmic function with a ratio of polynomial functions. Based on this similarity, we show that it is possible to present
a unifying framework for the high dynamic range (HDR) imaging problem, namely, that performing exposure merging
under the LTIP model is equivalent to standard irradiance map fusion. The resulting HDR algorithm is shown to provide
high quality in both subjective and objective evaluations.
Keywords
logarithmic image processing, human visual system, high dynamic range