Aufgrund von Vorbereitungen auf eine neue Version von KOPS, können kommenden Montag und Dienstag keine Publikationen eingereicht werden. (Due to preparations for a new version of KOPS, no publications can be submitted next Monday and Tuesday.)
Type of Publication: | Contribution to a conference collection |
URI (citable link): | http://nbn-resolving.de/urn:nbn:de:bsz:352-opus-127437 |
Author: | Li, Shujun; Ahmad, Junaid Jameel; Saupe, Dietmar; Kuo, C.-C. Jay |
Year of publication: | 2010 |
Conference: | 17th IEEE International Conference on Image Processing (ICIP 2010), Sep 26, 2010 - Sep 29, 2010, Hong Kong, Hong Kong |
Published in: | Proceedings of 17th IEEE International Conference on Image Processing (ICIP 2010). - IEEE, 2010. - pp. 2085-2088. - eISSN 1522-4880. - ISBN 978-1-4244-7992-4 |
ArXiv-ID: | arXiv:1002.1727v3 |
DOI (citable link): | https://dx.doi.org/10.1109/ICIP.2010.5653467 |
Summary: |
Motivated by the work of Uehara et al., an improved method to recover DC coefficients from AC coefficients of DCT-transformed images is investigated in this work, which finds applications in cryptanalysis of selective multimedia encryption. The proposed under/over-flow rate minimization (FRM) method employs an optimization process to get a statistically more accurate estimation of unknown DC coefficients, thus achieving a better recovery performance. It was shown by experimental results based on 200 test images that the proposed DC recovery method significantly improves the quality of most recovered images in terms of the PSNR values and several state-of-the-art objective image quality assessment (IQA) metrics such as SSIM and MS-SSIM.
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Subject (DDC): | 004 Computer Science |
Comment on publication: | 6 pages, 6 figures, ICIP 2010 |
Link to License: | In Copyright |
Bibliography of Konstanz: | Yes |
LI, Shujun, Junaid Jameel AHMAD, Dietmar SAUPE, C.-C. Jay KUO, 2010. An improved DC recovery method from AC coefficients of DCT-transformed images. 17th IEEE International Conference on Image Processing (ICIP 2010). Hong Kong, Hong Kong, Sep 26, 2010 - Sep 29, 2010. In: Proceedings of 17th IEEE International Conference on Image Processing (ICIP 2010). IEEE, pp. 2085-2088. eISSN 1522-4880. ISBN 978-1-4244-7992-4. Available under: doi: 10.1109/ICIP.2010.5653467
@inproceedings{Li2010-09impro-5976, title={An improved DC recovery method from AC coefficients of DCT-transformed images}, year={2010}, doi={10.1109/ICIP.2010.5653467}, isbn={978-1-4244-7992-4}, isbn={978-1-4244-7992-4}, publisher={IEEE}, booktitle={Proceedings of 17th IEEE International Conference on Image Processing (ICIP 2010)}, pages={2085--2088}, author={Li, Shujun and Ahmad, Junaid Jameel and Saupe, Dietmar and Kuo, C.-C. Jay}, note={6 pages, 6 figures, ICIP 2010} }
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Li_5_ICIP2010.pdf | 811 |