High Dynamic Range

Relying on a similarity between Logarithmic-Type Image Processing LTIP) model and the Naka-Rushton model of the Human Visual System (HVS) we propose an unifying framework to the High Dynamic Range (HDR) imaging problem. We show 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.

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HDR image by our algorithm.

Some resources:

Logarithmic image processing

The Logarithmic Image Processing (LIP) models are part of a larger category of non-linear image processing techniques that were introduced for overcoming limitations image processing techniques based on real operations. Due to their rigorous mathematical properties and similarities with human visual system, many application have appeared.

Here, we have contributed by:

A set of Matlab functions implementing basic models cand be downloaded from here
Matlab code and other resources are available here