This chapter presents an overview of wavelet-based image coding. We develop the basics
of image coding with a discussion of vector quantization. We motivate the use of transform …

Digital audio, video, images, and documents are flying through cyberspace to their
respective owners. Unfortunately, along the way, individuals may choose to intervene and …

The huge success of the Internet allows for the transmission, wide distribution, and access of
electronic data in an effortless manner. Content providers are faced with the challenge of …

The growth of new imaging technologies has created a need for techniques that can be
used for copyright protection of digital images and video. One approach for copyright …

This paper presents a new stochastic approach which can be applied with different
watermark techniques. The approach is based on the computation of a Noise Visibility …

More than ever, the growing amount of exchanged digital content calls for efficient and
practical techniques to protect intellectual property rights. During the past two decades …

Perceptual image quality metrics have explicitly accounted for human visual system (HVS)
sensitivity to subband noise by estimating just noticeable distortion (JND) thresholds. A …

The visual efficiency of an image compression technique depends directly on the amount of
visually significant information it retains. By" visually significant" we mean information to …

Perceptual approaches have been widely used in many areas of visual information
processing. This paper presents an overview of perceptual based approaches for image …

Digital watermarks have been proposed as a method for discouraging illicit copying and
distribution of copyrighted material. This paper describes a method for the secure and robust …