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International Journal of Wireless and Microwave Technologies(IJWMT)

ISSN: 2076-1449 (Print), ISSN: 2076-9539 (Online)

Published By: MECS Press

IJWMT Vol.1, No.3, Jun. 2011

A Simple Algorithm to Strengthen the Brightness of Color Images

Full Text (PDF, 156KB), PP.35-39


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Author(s)

Hua ZHANG

Index Terms

HIS color space, saturation ratio, brightness, Wavelet transformation, histogram smoothing

Abstract

This paper puts forward a simple algorithm to make color images lighter based on Wavelet transformation and histogram smoothing. This algorithm uses HIS space which is based on human visual features. Without changing hue, it can conduct histogram smoothing in low brightness frequency domain through wavelet decomposition and make the images lighter, which at the same time avoids vagueness of details and increase of noises. According to experiment results, this algorithm can make low brightness color images lighter effectively with low time complexity.

Cite This Paper

Hua ZHANG,"A Simple Algorithm to Strengthen the Brightness of Color Images", IJWMT, vol.1, no.3, pp.35-39, 2011.

Reference

[1]Qiuqi Ruan. Processing of Digital Images[M].Beijing: Publishing House of Electronics Industry, 2001.(in Chinese)

[2]Ping Wang, Hao Cheng, Yingxi Luo. Color Image Enhancement Based on Hue Invariability [J]. Journal of Image and Graphics, 2007,12(7): 1173. (in Chinese)

[3]Xiaowei Han. Study of the Key Technologies in Color Image Processing[D].ShenYang: Northeastern University, 2005. (in Chinese)

[4]Hong L,wan Y F, Jain A..Fingeip rint image enhancement algorithm and performance evaluation[J]. IEEE Trans on Pattern Analysis and Machine lntelligenc;1998,20(8): 777.

[5]Willis A J, M yers L A costeffective fingerp rint recognition system for use with low quality prints and damaged fingertips[J]. Pattern Recognition, 2001, 34(2): 255.

[6]Sherlock B G, M onro D M, M illaml K.. Fingerp rint enhancement by directional Fourier filter[ J]. IEEE Proceedings of Vision Inage and Signal Processing 1994,141(2): 87.

[7]Yanhong Zhang, Dewen Hou.The Image Enhancement Algorithm Based on Wavelet Frequency Sharing and One-time Balancing[J]Computer Application and Software, 2007,24(11): 159. (in Chinese)

[8]Jobson DJ, RalananZU, WoodellGA.The statistics of visual representation[ C]//Processing of SPIE Visual 1nfoanation processing Xl Washington SPIE Press 2002 25-35.