Naslov
HD-RACE: Spray-based Local Tone Mapping Operator

Autori
Koščević, Karlo ; Stipetić, Vedran ; Provenzi, Edoardo ; Banić, Nikola ; Subašić, Marko ; Lončarić, Sven

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of the 12th International Symposium on Image and Signal Processing and Analysis / - , 2021, 264-269

Skup
12th International Symposium on Image and Signal Processing and Analysis (ISPA 2021)

Mjesto i datum
Zagreb, Hrvatska, 13.09.2021. - 15.09.2021

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
High dynamic range images ; tone mapping ; Naka-Rushton equation ; Retinex

Sažetak
In this paper, a local tone mapping operator is proposed. It is based on the theory of sprays introduced in the Random Sprays Retinex algorithm, a white balance algorithm dealing with the locality of color perception. This tone mapping implementation compresses high dynamic range images by using three types of computations on sprays. These operations are carefully chosen so that the result of their convex combination is a low dynamic range image with a high level of detail in all its parts regardless of the original luminance values that may span over large dynamic ranges. Furthermore, a simple local formulation of the Naka-Rushton equation based on random sprays is given. The experimental results are presented and discussed.

Izvorni jezik
Engleski

Znanstvena područja
Računarstvo

POVEZANOST RADA