Results 91 to 100 of about 911 (209)
Multiscale Fragile Watermarking Based on the Gaussian Mixture Model
, 2008 —In this paper, a new multiscale fragile watermarking scheme based on the Gaussian mixture model (GMM) is presented. First, a GMM is developed to describe the statistical characteristics of images in the wavelet domain and an expectation–maximization ...
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Semi-fragile watermarking based content image authentication scheme
Revista Facultad de Ingeniería Universidad de Antioquia, 2010 Este articulo presenta un algoritmo de marca de agua semi-frágil basado en el contenido de los bloques de la imagen para la autenticación de los mismos.
Clara Cruz +3 more
doaj
A Fragile Watermark Method for Improving Medical Images Security
Journal of Computers, 2014 Aiming at the medical images security problem during storage and transmission, the author provides a fragile watermark method to protect it. And this method can be able to achieve integrity detection and accurate tampering localization. This method adopt s image block, chaotic modulation in watermark information and encryption to set password
openaire +1 more source
Fragile Digital Watermarking by Synthetic Holograms
, 2004 In this article is presented an application of synthetic hologram as fragile watermarking. The proposed technique is a frequency domain watermarking, based on computer generated hologram. Our technique, named Fragile Synthetic Holographic Watermarking (F-
COZZELLA LORENZO +2 more
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Robust and secure perceptual image hashing in the transform domain
The rapid development of multimedia devices such as computers, network technologies, and cell phones have made it easier for users to create, broadcast, convey, share, store, and distribute multimedia data including images, videos and audio files on a ...
Prungsinchai, Supakorn
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, 2009 [[abstract]]In this paper, a new oblivious fragile watermarking using discrete cosine transform is proposed. It is inspired by Wong's public key watermarking scheme proposed in 1998 and aims to improve its vulnerability towards possible attacks indicated
Chang, C. C.;Chou, H. +1 more
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Blind quality assessment of image and video based on fragile watermarking and robust features
, 2017 Blind quality assessment is an important feature required by many modern multimedia communication systems. Reduced reference approaches employing fragile watermarking techniques have been proposed earlier for this purpose. This paper proposes an approach
Palit, Sarbani +3 more
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Dual Domain Semi-Fragile Watermarking for Image Authentication,” M.A.Sc. thesis
, 2003 Techniques to establish the authenticity and integrity of digital images are becom-ing increasingly essential for secure transacting. Ideally, the authentication algorithm should distinguish incidental integrity maintaining distortions such as lossy ...
Yang Zhao
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Dual domain semi-fragile watermarking for image authentication
, 2003 Techniques to establish the authenticity and integrity of digital images are becoming increasingly essential for secure transacting. Ideally, the authentication algorithm should distinguish incidental integrity maintaining distortions such as lossy ...
Zhao, Yang
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Fragile watermarking tamper detection via bilinear fuzzy relation equations
, 2019 We present a fragile color image watermarking based on the greatest solution of a bilinear fuzzy relation equation. The original image is coded with fuzzy transforms and divided in sub-images of sizes 2 × 2 called blocks.
ferdinando di martino, salvatore sessa
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