Efficient Security Based Video Watermarking Technique using Chaotic Encryption with Discrete Cosine Transform
J. Udayakumar1, G. Prabakaran2, P.Elango3
1J. Udayakumar*, Research scholar, Dept., of CSE,FEAT, Annamalai university, Chidambaram, India.
2Dr. G. Prabakaran, Associate Professor, Dept., of CSE,FEAT, Annamalai university, Chidambaram, India.
3Dr. P. Elango, Assistant Professor Dept. of IT, PKIET, Karaikal, India.
Manuscript received on July 20, 2019. | Revised Manuscript received on August 10, 2019. | Manuscript published on August 30, 2019. | PP: 1416-1427 | Volume-8 Issue-6, August 2019. | Retrieval Number: F8113088619/2019©BEIESP | DOI: 10.35940/ijeat.F8113.088619
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: In this paper, a novel chaotic encryption-based blind digital video watermarking technique (DVWT) is presented for grayscale and color images. This method makes use of Discrete Cosine transform (DCT) prior to embed the watermark in the hosting video. The hosting video is split into frames of 8*8 nonoverlapping blocks before employing DCT, and watermark bit is implanted by altering the variations among the nearby DCT coefficients of neighboring blocks. Arnold transform is applied for chaotic encryption to offer extra security to the watermark. A set of three versions of the proposed model has been applied and the results are investigated. The experimental outcome confirms that the DCT-VWT is efficient on different image processing functions such as JPEG compression, sharpening, cropping, and median filtering. The comparative analysis ensures that the presented DCT for digital video watermarking technique (DCT-DVWT) is efficient under subjective as well as objective way.
Keywords: Video watermarking; Chaotic Encryption; DCT; PSNR.