Skema Digital Watermarking Citra dengan Metode TLDCT dan Chinese Remainder Theorem
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
Penulis: Danang Aditya
Nugraha, Rahmadwati, Muhammad Aziz
Muslim
Kode Jurnal: jptlisetrodd170470
