Title :
Image enhancement based on transform coefficient histogram shifting and shaping
Author :
Xia, Junjun ; Panetta, Karen ; Agaian, Sos
Author_Institution :
Dept. of Electr. & Comput. Eng., Tufts Univ., Medford, MA, USA
Abstract :
This paper proposes two image enhancement algorithms that are based on utilizing histogram data gathered from wavelet transform domain coefficients. Computer simulations demonstrate that combining the spatial method of histogram equalization with the wavelet transform domain coefficient histograms achieves a much more balanced enhancement, which outperforms classical histogram equalization algorithms.
Keywords :
image enhancement; wavelet transforms; histogram equalization; image enhancement algorithm; transform coefficient histogram shaping; transform coefficient histogram shifting; wavelet transform domain coefficients; Discrete wavelet transforms; Histograms; Image enhancement; Wavelet coefficients; Wavelet domain; Histogram equalization; Image enhancement; histogram shaping; histogram shifting; transform coefficient histogram;
Conference_Titel :
Technologies for Homeland Security (HST), 2010 IEEE International Conference on
Conference_Location :
Waltham, MA
Print_ISBN :
978-1-4244-6047-2
DOI :
10.1109/THS.2010.5654968
