This paper proposes a block-based reversible data embedding method applied to grayscale
cover images. The image is first divided into two areas: data embedding area and auxiliary …

There have been discussed various data hiding methods which can embed the secret data
in an image. However, the image gets destroyed after extraction of the secret data at the …

Amongst the various data hiding schemes, lossless data hiding has achieved substantial
attention in the recent years. Lossless watermarking also known as reversible watermarking …

Nowadays, RFID systems have been widely deployed for applications such as supply chain
management and inventory control. One of their most essential operations is to swiftly …

In this paper, a novel copyright protection scheme that combines the discrete wavelet
transform (DWT) and the singular value decomposition (SVD) is proposed. Instead of …

It is accepted that digital watermarking is quite relevant in medical imaging. However, due to
the special nature of clinical practice, it is often required that watermarking not introduce …

Fragile watermarking is commonly used for content authentication and tamper detection in
digital multimedia. For some critical applications, such as medical systems, the fragile …

After the extraction of hidden data, reversible data hiding (RDH) algorithms are able to
completely recover the original image without any error. For the past few years, a number of …

Lossless data hiding methods usually fail to recover the hidden messages completely when
the watermarked images are attacked. Therefore, the robust lossless data hiding (RLDH), or …

Robust reversible watermarking can provide robustness against various attacks besides the
ability to recover the cover image. However, robustness and reversibility are somewhat …