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A New Color Image Enhancement Algorithm for Camera-Equipped Mobile Telephone

  • Conference paper
Knowledge-Based Intelligent Information and Engineering Systems (KES 2006)

Part of the book series: Lecture Notes in Computer Science ((LNAI,volume 4251))

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Abstract

We present in this paper a color image enhancement algorithm with high speed, high quality, and low memory usage for the camera-equipped mobile telephone. To achieve this, we first introduce a propagation scheme that estimates and computes the statistical characteristics of an image, then we apply a piecewise nonlinear transformation in the R/G/B channels separately. If the value of a pixel is below minimum or above maximum, it can be ignored by using range stretching, then a narrow intensity range between minimum and maximum may be expanded to a much broader range defined by an exponent function, which consists of mean and variance of the pixel values, and its power is chosen by the trials. The optimal strategies for fast processing in the code style are also discussed. We demonstrate our color image enhancement system and compare it with other feasible techniques on the camera-equipped mobile telephone. The proposed algorithm can be carried out in about 2 seconds using the ARM7 processor and generally performs much better than traditional contrast enhancement methods with higher image quality.

This work was partially supported by Innovation Fund of Jiangxi University of Finance and Economics; Fund of Key Laboratory of High-Performance Computing Technology (JXHC-2005-004), Jiangxi Province; and the Science and Technique Program of Educational Department of Jiangxi Province (No: [2006]232).

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Author information

Authors and Affiliations

  1. School of Information Technology, Jiangxi University, of Finance & Economics, Nanchang, 330013, China

    Zhengyou Wang, Weiming Zeng, Zhijun Fang & Shiqian Wu

  2. Key Laboratory of High-Performance Computing Technology, Jiangxi Province, Nanchang, 330022, China

    Zhengyou Wang

  3. Department of Information Science and, Electronic Engineering, Zhejiang University, Hangzhou, 310027, China

    Quan Xue & Guobin Chen

Authors
  1. Zhengyou Wang
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  2. Quan Xue
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  3. Guobin Chen
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  4. Weiming Zeng
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  5. Zhijun Fang
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  6. Shiqian Wu
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Editor information

Editors and Affiliations

  1. School of Design, Engineering and Computing, Bournemouth University, UK

    Bogdan Gabrys

  2. Centre for SMART Systems, School of Environment and Technology, University of Brighton, BN2 4GJ, Brighton, UK

    Robert J. Howlett

  3. School of Electrical and Information Engineering, Knowledge Based Intelligent Engineering Systems Centre, University of South Australia, Mawson Lakes, 5095, SA, Australia

    Lakhmi C. Jain

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© 2006 Springer-Verlag Berlin Heidelberg

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Wang, Z., Xue, Q., Chen, G., Zeng, W., Fang, Z., Wu, S. (2006). A New Color Image Enhancement Algorithm for Camera-Equipped Mobile Telephone. In: Gabrys, B., Howlett, R.J., Jain, L.C. (eds) Knowledge-Based Intelligent Information and Engineering Systems. KES 2006. Lecture Notes in Computer Science(), vol 4251. Springer, Berlin, Heidelberg. https://doi.org/10.1007/11892960_76

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  • DOI: https://doi.org/10.1007/11892960_76

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-46535-5

  • Online ISBN: 978-3-540-46536-2

  • eBook Packages: Computer ScienceComputer Science (R0)

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