Tone Mapping and Enhancement of High Dynamic Range Images based on a Model of Visual Perception

M. Raffin and G. Guarnieri (Italy)


High dynamic range, tone mapping, image histogram, perceptual rendering, digital imaging.


We present a new dynamic range compression method for the reproduction of high dynamic range digital images on conventional display devices. The proposed technique is computationally efficient and easily adjustable with few parameters. Novel contributions of this work include an edge preserving smoother for the extraction of the visual adaptation level which avoids the formation of halo artifacts in the resulting image and a technique for contrast mapping which improves the visibility of the image details. The algorithm is finally evaluated by means of an objective measure proving its effectiveness.

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