A robust phase watermarking algorithm using conjugate symmetric sequency-ordered complex Hadamard transform
This paper presents a novel watermarking algorithm based on a newly developed transform known as conjugate symmetric sequency-ordered complex Hadamard transform (CSSCHT). The algorithm is performed in the sequency domain where the phases of the CS-SCHT coefficients are altered to convey the watermar...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Conference Paper |
| Language: | English |
| Published: |
2011
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| Online Access: | https://hdl.handle.net/10356/93867 http://hdl.handle.net/10220/7203 |
| _version_ | 1826110945518157824 |
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| author | Aung, Aye Ng, Boon Poh Rahardja, Susanto |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Aung, Aye Ng, Boon Poh Rahardja, Susanto |
| author_sort | Aung, Aye |
| collection | NTU |
| description | This paper presents a novel watermarking algorithm based on a newly developed transform known as conjugate symmetric sequency-ordered complex Hadamard transform (CSSCHT). The algorithm is performed in the sequency domain where the phases of the CS-SCHT coefficients are altered to convey the watermark information using the phase-shift-keying (PSK) modulation. The amplitude boost (AB) method is employed to improve the robustness of the watermarking scheme and the spread spectrum (SS) technique is adopted to increase the security of the watermark against various attacks. The robustness of the proposed scheme is investigated by various types of image attacking operations such as JPEG compression, resizing, cropping and low-pass filtering. |
| first_indexed | 2024-10-01T02:42:30Z |
| format | Conference Paper |
| id | ntu-10356/93867 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:42:30Z |
| publishDate | 2011 |
| record_format | dspace |
| spelling | ntu-10356/938672019-12-10T11:13:42Z A robust phase watermarking algorithm using conjugate symmetric sequency-ordered complex Hadamard transform Aung, Aye Ng, Boon Poh Rahardja, Susanto School of Electrical and Electronic Engineering Asia Pacific Signal and Information Processing Annual Summit and Conference (2010) Positioning and Wireless Technology Centre DRNTU::Engineering::Electrical and electronic engineering::Electronic systems::Signal processing This paper presents a novel watermarking algorithm based on a newly developed transform known as conjugate symmetric sequency-ordered complex Hadamard transform (CSSCHT). The algorithm is performed in the sequency domain where the phases of the CS-SCHT coefficients are altered to convey the watermark information using the phase-shift-keying (PSK) modulation. The amplitude boost (AB) method is employed to improve the robustness of the watermarking scheme and the spread spectrum (SS) technique is adopted to increase the security of the watermark against various attacks. The robustness of the proposed scheme is investigated by various types of image attacking operations such as JPEG compression, resizing, cropping and low-pass filtering. Published version 2011-10-11T00:45:03Z 2019-12-06T18:46:50Z 2011-10-11T00:45:03Z 2019-12-06T18:46:50Z 2010 2010 Conference Paper Aung, A., Ng, B. P. & Rahardja, S. (2010). A robust phase watermarking algorithm using conjugate symmetric sequency-ordered complex Hadamard transform. 2010 Asia Pacific Signal and Information Processing Annual Summit and Conference, Biopolis, Singapore, pp.153-156. https://hdl.handle.net/10356/93867 http://hdl.handle.net/10220/7203 en © 2010 APSIPA. This paper was published in Proceedings of the Second APSIPA Annual Summit and Conference and is made available as an electronic reprint (preprint) with permission of APSIPA. The published version is available at: [http://www.apsipa.org/proceedings_2010/AuthorIndex.htm]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law. 4 p. application/pdf |
| spellingShingle | DRNTU::Engineering::Electrical and electronic engineering::Electronic systems::Signal processing Aung, Aye Ng, Boon Poh Rahardja, Susanto A robust phase watermarking algorithm using conjugate symmetric sequency-ordered complex Hadamard transform |
| title | A robust phase watermarking algorithm using conjugate symmetric sequency-ordered complex Hadamard transform |
| title_full | A robust phase watermarking algorithm using conjugate symmetric sequency-ordered complex Hadamard transform |
| title_fullStr | A robust phase watermarking algorithm using conjugate symmetric sequency-ordered complex Hadamard transform |
| title_full_unstemmed | A robust phase watermarking algorithm using conjugate symmetric sequency-ordered complex Hadamard transform |
| title_short | A robust phase watermarking algorithm using conjugate symmetric sequency-ordered complex Hadamard transform |
| title_sort | robust phase watermarking algorithm using conjugate symmetric sequency ordered complex hadamard transform |
| topic | DRNTU::Engineering::Electrical and electronic engineering::Electronic systems::Signal processing |
| url | https://hdl.handle.net/10356/93867 http://hdl.handle.net/10220/7203 |
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