Results 41 to 50 of about 23,063 (201)
Geometric correction code‐based robust image watermarking
IET Image Processing, 2023 Digital image watermarking is one of the effective schemes to protect the copyrights of still images. However, the existing watermarking schemes are still not robust enough to the common geometric transformation attacks such as arbitrary rotation ...
Zhili Zhou +4 more
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Journal of King Saud University: Computer and Information Sciences, 2022 Digital data sharing is increased day by day due to the rapid access of the Internet by mass people. Multimedia, for example text, image, video, and audio can be easily accessed by unauthorized users.
Mahbuba Begum +2 more
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Perceptual Copyright Protection Using Multiresolution Wavelet-Based Watermarking And Fuzzy Logic
, 2010 In this paper, an efficiently DWT-based watermarking technique is proposed to embed signatures in images to attest the owner identification and discourage the unauthorized copying.
Hsieh, Ming-Shing
core +3 more sources
PERFORMANCE ANALYSIS OF SECURE MEDICAL IMAGE COMMUNICATION WITH DIGITAL SIGNATURE AND REVERSIBLE WATERMARKING [PDF]
ICTACT Journal on Image and Video Processing, 2013 Protection of Medical image contents becomes the important issue in computer network security. Digital Watermarking has becomes a promising technique for medical content authentication, it allows to embed relevant information with the image, which ...
A. Umamageswari, G. R. Suresh
doaj
Parallel Digital Watermarking Process on Ultrasound Medical Images in Multicores Environment
International Journal of Biomedical Imaging, 2016 With the advancement of technology in communication network, it facilitated digital medical images transmitted to healthcare professionals via internal network or public network (e.g., Internet), but it also exposes the transmitted digital medical images
Hui Liang Khor +2 more
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Metachromatic Butterfly Bile Pigments for Multi‐Level Optical Security Films
Advanced Functional Materials, EarlyView.Bio‐derived optical security materials are manufactured by embedding butterfly‐based pigments in polymer films. Tunable color and fluorescence responses arise from concentration‐controlled metachromasy, enabling spatially encoded patterns with distinct visible, UV‐active, and spectral signatures.
Limin Wang, Bodo D. Wilts
wiley +1 more source
Sensors, 2022 Copyright protection of medical images is a vital goal in the era of smart healthcare systems. In recent telemedicine applications, medical images are sensed using medical imaging devices and transmitted to remote places for screening by physicians and ...
Doaa Sami Khafaga +3 more
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Robust Object-Based Watermarking Using SURF Feature Matching and DFT Domain [PDF]
, 2013 In this paper we propose a robust object-based watermarking method, in which the watermark is embedded into the middle frequencies band of the Discrete Fourier Transform (DFT) magnitude of the selected object region, altogether with the Speeded Up Robust
Cedillo-Hernandez, M. +3 more
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A New Method For Digital Watermarking Based on Combination of DCT and PCA
, 2015 In the digital watermarking with DCT method,the watermark is located within a range of DCT coefficients of the cover image. In this paper to use the low-frequency band, a new method is proposed by using a combination of the DCT and PCA transform.
Hosseini, S. Abolfazl, Saboori, Arash
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Digital Image Watermarking Using Ellipse Watermark
, 2017 From past few decades watermarking became very crucial for digital images being transmitted over network. All the time ownership and license are great issues if someone fetches the image sent by one without any ownership seal, i.e. watermark, and uses as his own image.
SURAJ KUMAR DUBEY, DR. A. S. ZADGAONKAR
openaire +1 more source