This paper presents a reliable digital watermarking technique that provides high
imperceptibility and robustness for copyright protection using an optimal discrete cosine …

The usage of linear transformations has great relevance for data decorrelation applications,
like image and video compression. In that sense, the discrete Tchebichef transform (DTT) …

A compression process is to reduce or compress the size of data while maintaining the
quality of information contained therein. This paper presents a survey of research papers …

Video surveillance systems process high volumes of image data. To enable long-term
retention of recorded images and because of the data transfer limitations in geographically …

With the era of rapid technology in multimedia, the copyright protection is very important to
preserve an ownership of multimedia data. This paper proposes an image watermarking …

With increasing demand on digital images, there is a need to compress the image to
entertain the limited bandwidth and storage capacity. Recently, there is a growing interest …

This paper proposes a blind and robust image watermarking technique using Discrete
Cosine Transform (DCT) for copyright protection on color images called BRIW-DCT. Each …

In this letter, we introduce a low-complexity approximation for the discrete Tchebichef
transform (DTT). The proposed forward and inverse transforms are multiplication-free and …

Digital watermarking is an alternative solution to prevent unauthorized duplication,
distribution and breach of ownership right. This paper proposes a watermarking scheme for …

In recent years, the Discrete Tchebichef Transform (DTT) has gained popularity as a signal
processing tool for image and video compression due to its efficient coding and …