Interpolation for nonlinear Retinex-type algorithms

D. Shaked

doi:10.1117/12.704776

29 January 2007 Interpolation for nonlinear Retinex-type algorithms

D. Shaked

Author Affiliations +

Proceedings Volume 6493, Color Imaging XII: Processing, Hardcopy, and Applications; 649312 (2007) https://doi.org/10.1117/12.704776
Event: Electronic Imaging 2007, 2007, San Jose, CA, United States

Abstract

In this paper we propose a method to speed up Retinex-type algorithms, consisting of a computationally intensive nonlinear illumination estimation module followed by a relatively simple manipulation module. Speed up is obtained by way of computing the illumination on a sub-sampled image. The challenge is to interpolate a piece-wise smooth low resolution image. We present and analyze the trade of between two types of interpolation methods. On one hand, regular illumination interpolation, which preserves the Retinex-type output quality, however may result in artifacts. On the other hand a detail preserving interpolation which removes artifacts, however may compromise the output quality.

Citation Download Citation

D. Shaked "Interpolation for nonlinear Retinex-type algorithms", Proc. SPIE 6493, Color Imaging XII: Processing, Hardcopy, and Applications, 649312 (29 January 2007); https://doi.org/10.1117/12.704776

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