Robust And Imperceptible Digital Video Watermarking Techniques
| dc.contributor.author | Al-Taweel, Sadik Ali Murshid | |
| dc.date.accessioned | 2019-09-11T08:30:51Z | |
| dc.date.available | 2019-09-11T08:30:51Z | |
| dc.date.issued | 2011-02 | |
| dc.description.abstract | The massive production of image and video materials on the Computer Mediated Systems (CMS) over the Internet has created a challenge in the area of copyright protection. Numerous illegal copies have been made and efforts on proving the owner copyright of those media are indeed a challenging task. Digital watermarking is a solution that can be used to prove the ownership/ copyright by embedding watermark (owner, information) into the image/video. Later, the embedded watermark is used as a proof and evidence for the real ownership. Thus, the embedded watermark should be robust and imperceptible against any attempt of removing and alteration on it. However, guaranteeing against any alteration as to preserve the originality is one of the major hurdles in image and video watermarking system. The embedded watermark in the image is easily distorted / altered from activities such as geometric manipulation, image processing process, compression process and noises within the image. Those (also being referred to as attacks) has caused the extracted watermark not similar to the original one and thus denying ownership claiming. This study presents four watermarking techniques that are robust and imperceptible against attacks. The first scheme is called Spread Spectrum Frequency Domain. This scheme uses modulated spread spectrum sequence in representing the watermark. In the embedding process, two frequency domain embedding process called Spread Spectrum Discrete Cosine transform (SSDCT) and Spread Spectrum Wavelet transform (SSDWT) are presented. Both schemes embedded the transformed coefficients watermark into the high frequency of transform coefficient of the selected frames. | en_US |
| dc.identifier.uri | http://hdl.handle.net/123456789/8865 | |
| dc.language.iso | en | en_US |
| dc.publisher | Universiti Sains Malaysia | en_US |
| dc.subject | Robust And Imperceptible | en_US |
| dc.subject | Digital Video Watermarking | en_US |
| dc.title | Robust And Imperceptible Digital Video Watermarking Techniques | en_US |
| dc.type | Thesis | en_US |
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