In this paper, a new reversible watermarking scheme resistant to geometrical attacks is presented. The proposed scheme does not need the original image for extracting the watermark, and induces not noticeable distortion during the watermarking procedure. The embedding algorithm has low computational complexity, can be applied to very small images (down to 16 x 16), and provides capabilities of ...

Watermarking technique is popular of the solution to copyright protection. Good detection method can improve the probability of the successful detection. In this paper, a novel blind detection method pointing to the multiplicative embedding rule is proposed. Whether the watermark is present in the received image or not is determined by the correlation between the transform coefficients with the...

Abstract We investigate the injective types and algebraically in univalent mathematics, both absence presence of propositional resizing. Injectivity is defined by surjectivity restriction map along any embedding, algebraic injectivity a given section embedding. Under resizing axioms, main results are easy to state: (1) equivalent truncation injectivity. (2) The precisely retracts exponential po...

Medical research indicated that narrowing of the retinal blood vessels might be an early indicator cardiovascular diseases; one them is hypertensive retinopathy. This paper proposed new staging method retinopathy by measure ratio diameter artery and vein (AVR). The dataset used in this public Messidor color fundus image dataset. consists resizing using bicubic interpolation, optic disk detectio...

Image scaling is the process of resizing a digital image, wherein an image is converted from one resolution/dimension to another resolution/dimension without losing the visual content. It has many terminologies in literature such as Image Interpolation, image re-sampling, digital zooming, image magnification or enhancement, etc [1] [2]. Image interpolation algorithms can be grouped in two categ...

With the development of Image processing editing tools and software, an image is manipulated very easily. The image manipulation detection is essential for the reason that an image can be employed as legal evidence, in the field of forensics investigations, and also in numerous various other fields. The image forgery detection based on pixels aims to validate the digital image authenticity with...

OF THE DISSERTATION Image Coding Subject to Constraints by Tamás Frajka Doctor of Philosophy in Electrical Engineering (Communications Theory and Systems) University of California, San Diego, 2003 Professor Kenneth Zeger, Chair An image in digital format is a rectangular array of nonnegative integers, representing the light or color intensity values in the image. Its compression or coding is co...