Title :
An improved contrast-tone mapping algorithm for image contrast enhancement
Author :
Zhou, Zhiyuan ; Yang, Xiaokang ; Chen, Li ; Zhai, Guangtao ; Zhang, Wenjun
Author_Institution :
Inst. of Image Commun. & Inf. Process., Shanghai Jiao Tong Univ., Shanghai, China
Abstract :
In this paper, an improved image contrast enhancement algorithm extending the existing contrast-tone mapping framework is proposed. The proposed method improves the existing algorithm with new definition of image contrast and novel constraints to the optimization. Experimental results demonstrate that the proposed Improved Optimal Contrast-tone Mapping (IOCTM) algorithm outperforms existing histogram equalization based method as well as existing OCTM method.
Keywords :
image enhancement; optimisation; histogram equalization based method; improved contrast-tone mapping algorithm; improved image contrast enhancement algorithm; optimization; Brightness; Dynamic range; Helium; Heuristic algorithms; Histograms; Linear programming; Optimization; Optimal Contrast-tone Mapping; image contrast;
Conference_Titel :
Information, Communications and Signal Processing (ICICS) 2011 8th International Conference on
Conference_Location :
Singapore
Print_ISBN :
978-1-4577-0029-3
DOI :
10.1109/ICICS.2011.6174294
