Ubiquitous computing has fueled the idea of constructing sentient, information-rich" smart
spaces" that extend the boundaries of traditional computing to encompass physical spaces …

The rapid growth of covert activities via communications network brought about an
increasing need to provide an efficient method for data hiding to protect secret information …

The current globalised era is marked with a rapid increase in the use of wireless media to
exchange information over globally distributed locations. This advancement and growth of …

The present medical era has seen quite a considerable amount of work been done in tele-
monitoring that involves transmission of biomedical signals through wireless media …

The rapid evolution in data transmission by the wide use of the internet, as provided an
urgent need to prevent penetration and maintain the confidentiality of this data through the …

There are several digital watermarking metrics proposed by researchers. These metrics can
determine the robustness and the imperceptibility of watermarking schemes discretely. Here …

This paper proposes a copyright protection system for digital certificate image using blind
watermarking technique by applying discrete wavelet transform algorithm (DWT). The …

Steganography is a way to conceal secret message under a cover image, and is one of the
most widespread approaches of securing information. The challenge of steganographic …

These days there are several watermarking attacks which originated from general
image/signal processing operations. To assess the robustness of watermarking schemes …

The impeccability (quality) represent as one of the most important requirements of any
watermarking system of the watermarked gray scale image. In most studies, the …