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Improving Image Quality for JPEG Compression

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Knowledge-Based Intelligent Information and Engineering Systems (KES 2005)

Part of the book series: Lecture Notes in Computer Science ((LNAI,volume 3683))

Abstract

JPEG is a well-known method for digital image compression. The drawback of JPEG is distortion to image quality by truncation errors from quantizing the DCT coefficients. Another problem is the damage on the extracted watermarks from JPEG compression for the spatial-domain watermarks. In this paper, we proposed an improved method to enhance the quality of the decompressed image. The purpose of our proposed method is to adjust the reconstructed DCT coefficients closed as their original values. The coefficient adjustment blocks are used to guide the decompression operation during the coefficient reconstruction. Experimental results show that the proposed method has indeed made the image quality improvement as comparing to the images in the traditional method.

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Author information

Authors and Affiliations

  1. Department of Information Engineering and Computer Science, Feng Chia University, Taichung, 40724, Taiwan, R.O.C.

    Chin-Chen Chang

  2. Department of Computer Science and Information Engineering, National Chung Cheng University, Chiayi, 621, Taiwan, R.O.C.

    Chin-Chen Chang & Yung-Chen Chou

  3. Department of Information Management, National Formosa University, Yunlin, 632, Taiwan, R.O.C.

    Jau-Ji Shen

Authors
  1. Chin-Chen Chang
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  2. Yung-Chen Chou
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  3. Jau-Ji Shen
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Editor information

Editors and Affiliations

  1. School of Business, La Trobe University, 3086, Melbourne, Victoria, Australia

    Rajiv Khosla

  2. Centre for SMART systems Engineering Research Centre, University of Brighton, BN2 4GJ, Moulsecoomb, Brighton, UK

    Robert J. Howlett

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

    Lakhmi C. Jain

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© 2005 Springer-Verlag Berlin Heidelberg

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Chang, CC., Chou, YC., Shen, JJ. (2005). Improving Image Quality for JPEG Compression. In: Khosla, R., Howlett, R.J., Jain, L.C. (eds) Knowledge-Based Intelligent Information and Engineering Systems. KES 2005. Lecture Notes in Computer Science(), vol 3683. Springer, Berlin, Heidelberg. https://doi.org/10.1007/11553939_63

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  • DOI: https://doi.org/10.1007/11553939_63

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-28896-1

  • Online ISBN: 978-3-540-31990-0

  • eBook Packages: Computer ScienceComputer Science (R0)

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