Skema Digital Watermarking Citra dengan Metode TLDCT dan Chinese Remainder Theorem

Danang Aditya Nugraha, Rahmadwati Rahmadwati, Muhammad Aziz Muslim

Abstract


Currently, it is easy to access the wide variety of digital content on the internet, and therefore protection effort for digital content is an important problem that needs to solve. One kind of digital content that urgently needs to protect is digital image. Protection is needed not only for the copyright but also for the authenticity of digital image because there are so many advanced image editing software, that are easy to use. This paper presents a scheme for digital image protection through Digital Watermarking process using Two Level Discrete Cosine Transform, and Chinese Remainder Theorem for color digital image. This scheme has an ability to detect and to recover some kind of changes that occur in the watermarked image. This ability can be achieved because this scheme is categorized into fragile digital watermarking, thus, has low robustness. However, based on experiment results, this scheme shows a good invisibility. It is higher than the previous research and has a minimum distortion, proven by Peak Signal to Noise Ratio (PSNR) value of around 45.

Keywords


Citra Digital; Digital Watermarking; Authenticity; Two Level Discrete Cosine Transform; Chinese Remainder Theorem; Robustness; Invisibility.

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References


Dewanto, W., Susanto,M.F., Sujoko, S. 2012.”Penyisipan Kode Dalam Sinyal Iklan Radio Siaran Niaga Sebagai Penanda Identitas Kepemilikan” , JNTETI, Vol.1,No.1, 2012.

Patra, B. & Patra, J.C. 2012. “CRT-Based Fragile Self-Recovery Watermarking Scheme for Image Authentication and Recovery”. International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS, 4 – 7 November 2012.

Patra, J.C., Karthik, A. & Bornand, C. 2009. “A novel CRT-based watermarking technique for authentication of multimedia contents”. Digital Signal Processing. 20(2): 442-453.

Su, Q., Niu, Y., Liu, X. & Yao, T. 2013. “A novel blind digital watermarking algorithm for embedding color image into color image”. International Journal for Light and Electron Optics. 124: 3254 – 3259.

Botta, M., Cavagnino, D. & Pomponiu, V. 2015. A modular framework for color image watermarking. Signal Processing. 119: 102 – 114.

Vaishnavi, D. & Subashini, T.S. 2015.”Robust and Invisible Image Watermarking in RGB Color space using SVD”. Procedia Computer Science 46(2015): 1770-1777. ICICT 2014.

Shi, Y.Q. & Sun, H. 2000. Image and Video Compression for Multimedia Engineering: Fundamentals, Algorithms, and Standards. Florida: CRC Press.




DOI: http://dx.doi.org/10.22146/jnteti.v6i2.307

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