In the recent digitization era, image hashing is a key technology, including image
recognition, authentication and manipulation detection, among many multimedia security …

Perceptual hashing is used for multimedia content identification and authentication through
perception digests based on the understanding of multimedia content. This paper presents a …

Image quality assessment (IQA) is an important task of image processing and has diverse
applications, such as image super-resolution reconstruction, image transmission and …

The Canny operator is widely used to detect edges in images. However, as the size of the
image dataset increases, the edge detection performance of the Canny operator decreases …

Multidimensional scaling (MDS) is an efficient technique for data analysis, and has been
successfully applied in data visualization, object retrieval, data clustering, and so on …

In this paper, a novel perceptual hashing scheme for color images is proposed with the
hybrid feature extraction mechanism. During the stage of pre-processing, image …

The necessity for photovoltaic (PV) arrays has expanded due to the rising demand for solar
electrical energy. The demand for solar cells has grown as they are a key component of the …

The unprecedented escalation and proliferation of digital multimedia and Internet
technology have triggered the enormous copyright infringement issues and tampering of …

White button mushrooms, one of the most commonly and widely consumed mushrooms
worldwide, require grading before entering the market. The diameter of the pileus is an …

In this paper, a perceptual image hashing scheme based on color opponent component
(COC) and Quadtree structure is proposed. Firstly, image normalization and Gaussian low …