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Proceedings Paper

A method of approximately reconstructing JPEG quantization table via saturated overflow
Author(s): Li Huang; Ming Xu; Haiping Zhang; Jian Xu; Ning Zheng
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Paper Abstract

Header information is vital to decode and display a JPEG file. Therefore, it is necessary for head-missing JPEG fragment to estimate the header information. In this paper, a novel method is proposed to approximately reconstruct JPEG quantization tables. Based on the saturated overflow phenomenon introduced in the inverse DCT transform, the original quantization tables can be approximately rebuilt by our algorithm. The experimental results show that the estimated quantization tables can be used to normally display the image with no visual distorted. Experiments also prove that the method is more effective when the compression quality is high.

Paper Details

Date Published: 14 March 2013
PDF: 8 pages
Proc. SPIE 8768, International Conference on Graphic and Image Processing (ICGIP 2012), 87680W (14 March 2013); doi: 10.1117/12.2010660
Show Author Affiliations
Li Huang, Hangzhou Dianzi Univ. (China)
Ming Xu, Hangzhou Dianzi Univ. (China)
Haiping Zhang, Hangzhou Dianzi Univ. (China)
Jian Xu, Hangzhou Dianzi Univ. (China)
Ning Zheng, Hangzhou Dianzi Univ. (China)

Published in SPIE Proceedings Vol. 8768:
International Conference on Graphic and Image Processing (ICGIP 2012)
Zeng Zhu, Editor(s)

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