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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Saleh, R.H.I. |
| Copyright Year | 2008 |
| Description | Author affiliation: Radiat. Eng. Dept., NCRRT, Cairo (Saleh, R.H.I.) |
| Abstract | DCT-based watermarking systems are widely used in protection of multimedia content. The two-dimension DCT and its counterpart Inverse 2-D DCT, are the most complex parts in the DCT-based watermarking systems. One of the DCT-based watermarking systems is the Mid-band Exchange Coefficient watermarking algorithm, which encodes one-bit of the binary watermark image into one 8x8 sub-block of the host image by ensuring that the difference of two mid-band coefficients is positive in case of the encoded value is 1. Otherwise, the two mid-band coefficients are exchanged. Efficient algorithm and structure of the Mid-band Exchange Coefficient watermarking system are proposed which use pruning 2-D DCT to compute the two mid-band coefficients only and don't need to use the 2-D IDCT. The Proposed structure is implemented on Xilinx Virtex 800 FPGA chip. The proposed structure consumes about third of the area, and half of the computing time of the traditional structure. |
| Starting Page | 1 |
| Ending Page | 5 |
| File Size | 267238 |
| Page Count | 5 |
| File Format | |
| ISBN | 9781424417513 |
| DOI | 10.1109/ICTTA.2008.4530079 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2008-04-07 |
| Publisher Place | Syria |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Two dimensional displays FPGA Watermarking Quantization Discrete wavelet transforms Image Frequency domain analysis Image coding DCT Transform coding Noise robustness Discrete cosine transforms Field programmable gate arrays |
| Content Type | Text |
| Resource Type | Article |
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