By its definition, the word 'currency'refers to an agreed medium for exchange, a nation's
currency is the formal medium enforced by the elected governing entity. Throughout history …

Text is an important medium used for sharing information worldwide. For a text document,
digital watermarking is an efficient way for copyright protection, authentication, tamper …

This paper considers a digital watermarking based on the modification of color image pixels,
and proposes an improving method to improve its performance. Conceptually, in the …

This paper proposes a new color image watermarking scheme based on coefficients
modification in LL sub-band. Basically, the blue component of original color image is …

This paper proposes a Robust watermarking technique in the spatial domain using colour
images. An Algorithm based on modulo operations is developed to embed the watermark …

This paper proposes an improving method for the pixel-wise based image watermarking by
using image averaging technique and prediction of tuned watermarked pixels. To reduce the …