Image Contrast Enhancement Using Weighted Transformation Function
Asma Jabeen, Muhammad Mohsin Riaz, Naima Iltaf, Abdul Ghafoor · IEEE Sensors Journal · 2016
This paper presents a contrast enhancement technique using weighted transformation functions. The transformation functions obtained at different levels (using modified histograms) are weighted according to their similarity/dissimilarity from mean value. To increase the dynamic range of enhanced image, bins having very slight contribution in the histogram are filtered out. Simulation results (evaluated visually and quantitatively) on different images show the significance of the proposed technique as compared with the state-of-the-art existing techniques.