Image quality assessment (IQA) has been a topic of intense research over the last several
decades. With each year comes an increasing number of new IQA algorithms, extensions of …

In this paper, a robust blind watermarking technique, based on block-based DCT coefficient
modification is proposed. The difference between two DCT coefficients of the adjacent …

The Discrete Cosine Transform (DCT) is used in many applications by the scientific,
engineering and research communities and in data compression in particular. Fast …

A variable can be multiplied by a given set of fixed-point constants using a multiplier block
that consists exclusively of additions, subtractions, and shifts. The generation of a multiplier …

This paper presents a novel blind watermarking algorithm in DCT domain using the
correlation between two DCT coefficients of adjacent blocks in the same position. One DCT …

With the advent of visual sensor networks (VSNs), energy‐aware compression algorithms
have gained wide attention. That is, new strategies and mechanisms for power‐efficient …

This paper proposes a novel video compression scheme based on a highly flexible
hierarchy of unit representation which includes three block concepts: coding unit (CU) …

Video processing systems such as HEVC requiring low energy consumption needed for the
multimedia market has lead to extensive development in fast algorithms for the efficient …

Nearly all block-based transform schemes for image and video coding developed so far
choose the 2-D discrete cosine transform (DCT) of a square block shape. With almost no …

This paper proposes a new framework for digital image processing; it relies on inexact
computing to address some of the challenges associated with the discrete cosine transform …