Open AccessEfficient Security Base d Video Watermarking Technique u sing Chaotic Encryption with Discrete Cosine Transform
Author(s) -
J. Udayakumar,
G. Prabakaran,
P. Elango
Publication year - 2019
Publication title -
international journal of engineering and advanced technology
Language(s) - English
Resource type - Journals
ISSN - 2249-8958
DOI - 10.35940/ijeat.f8113.088619
Subject(s) - discrete cosine transform , digital watermarking , watermark , computer vision , encryption , computer science , artificial intelligence , chaotic , jpeg , grayscale , algorithm , mathematics , data compression , image (mathematics) , computer security
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.