A modified unsharp masking method using particle swarm optimization

Mai CLDA; Nguyen MTT; Kwok NM, 2011, 'A modified unsharp masking method using particle swarm optimization', Proceedings - 4th International Congress on Image and Signal Processing, CISP 2011, vol. 2, pp. 646 - 650, China

Abstract / Description

Unsharp Masking is an effective and simple method of contrast enhancement. This paper explores the Unsharp Mask using the Laplacian Operator. The proposed method optimizes the Laplacian coefficient, α, and the Unsharp Mask`s gain by maximizing the information content. The optimization process used was Multi-objective Particle Swarm Optimization. The proposed method was applied on both a global and local scale. The results show that the proposed method outperforms the classic Unsharp Masking method. The method is intended for gray-level images but can be applied to color images in general. © 2011 IEEE.

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