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Digital signal processing, ISSN 1051-2004, 2014, Volume 28, Issue 1, pp. 106 - 119
Among the few existing color watermarking schemes, some use quaternion discrete Fourier transform (QDFT). By modulating at least one component of QDFT... 
Digital image watermarking | Quaternion | Color image | Quaternion discrete Fourier transform | HYPERCOMPLEX | ENGINEERING, ELECTRICAL & ELECTRONIC | Analysis | Algorithms | Fourier transforms | Quaternions | Watermarking | Color | Robustness | Image compression | Channels | Life Sciences | Bioengineering
Journal Article
Signal Processing: Image Communication, ISSN 0923-5965, 09/2016, Volume 47, pp. 160 - 169
In this paper, we propose a novel crypto-watermarking system for the purpose of verifying the reliability of medical images and tracing them, i.e. identifying... 
Traceability | Medical image | Decryption | Reliability | Security | Watermarking | ENCRYPTION | SECURE | IDENTIFICATION | ENGINEERING, ELECTRICAL & ELECTRONIC | Quality control | Medical imaging equipment
Journal Article
IEEE Transactions on Information Forensics and Security, ISSN 1556-6013, 01/2013, Volume 8, Issue 1, pp. 111 - 120
Journal Article
Optics Express, ISSN 1094-4087, 03/2014, Volume 22, Issue 5, pp. 4932 - 4942
This paper describes a novel algorithm to encrypt double color images into a single undistinguishable image in quaternion gyrator domain. By using an iterative... 
SCHEME | OPTICS | ONLY MASKS | MODULATION | FRACTIONAL FOURIER-TRANSFORM | DIGITAL HOLOGRAPHY | Life Sciences | Bioengineering | Engineering Sciences | Computer Science | Signal and Image processing
Journal Article
Scientific reports, ISSN 2045-2322, 2017, Volume 7, Issue 1, pp. 13868 - 17
X-ray computed tomography (CT) has been widely used to provide patient-specific anatomical information in the forms of tissue attenuation. However, the... 
MULTIDISCIPLINARY SCIENCES | Models, Theoretical | Algorithms | Humans | Tomography, X-Ray Computed | Torso - diagnostic imaging | Image Processing, Computer-Assisted - methods | Radiation Dosage | Phantoms, Imaging | Dictionaries | Medical imaging | Image processing | Computed tomography
Journal Article
Pattern recognition, ISSN 0031-3203, 2010, Volume 43, Issue 3, pp. 1152 - 1164
This paper presents an image reconstruction method for X-ray tomography from limited range projections. It makes use of the discrete Radon transform and a set... 
Discrete Radon transform | Projection moments | Discrete orthogonal moments | Image reconstruction | COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE | ENGINEERING, ELECTRICAL & ELECTRONIC | Life Sciences | Bioengineering | Imaging | Computer Science | Mathematics | Engineering Sciences | Representation Theory | Signal and Image processing
Journal Article
IEEE Journal of Biomedical and Health Informatics, ISSN 2168-2194, 11/2013, Volume 17, Issue 6, pp. 1057 - 1067
Journal Article
IEEE Transactions on Image Processing, ISSN 1057-7149, 08/2011, Volume 20, Issue 8, pp. 2189 - 2199
Journal Article
Signal Processing: Image Communication, ISSN 0923-5965, 09/2016, Volume 47, pp. 263 - 270
In this paper, we propose a novel approach which allows embedding a message into an encrypted image; a message that can be accessed whether the image is... 
Image security | Data hiding | Encryption | Stream cipher | MEDICAL IMAGES | VIDEO | RELIABILITY | ENGINEERING, ELECTRICAL & ELECTRONIC | Algorithms | Medical imaging equipment
Journal Article
Computers & electrical engineering, ISSN 0045-7906, 2015, Volume 46, pp. 419 - 432
Journal Article
Optics communications, ISSN 0030-4018, 2015, Volume 343, pp. 56 - 65
Quaternion representation of color image has attracted great attention due to its capability to treat holistically the three color channels. In a more general... 
Encryption and decryption | Quaternion gyrator transform | Double random phase encoding | Color image | Watermarking | ENCRYPTION | FRACTIONAL FOURIER-TRANSFORM | DIGITAL WATERMARKING | OPTICS | RETRIEVAL ALGORITHM | Algorithms
Journal Article