Adaptive image enhancement based on fractional differential mask

Abstract

In this paper, an adaptive image enhancement based on fractional differential mask is proposed. Firstly, the designing method of the fractional differential mask is introduced and the image enhancing strategy based on the fractional differential mask is presented. Then, an unsupervised method is introduced to optimize the fractional order parameter by using the statistical character of digital image. The experiments demonstrate the validity of the proposed image enhancing algorithm.