Results 11 to 20 of about 52,493 (283)
On the Pixel Expansion of Visual Cryptography Scheme
International Journal of Digital Crime and Forensics, 2017 In this paper, we first follow Ateniese et al.'s work that provides upper bounds of the pixel expansion of visual cryptography schemes(VCSs) for more kinds of graph access structures, in which we require that a subset of parties can determine the secret if they contain an edge of the graph G.
Teng Guo 0005 +3 more
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Towards Shift Tolerant Visual Secret Sharing Schemes without Pixel Expansion
MATEC Web of Conferences, 2016 Naor and Shamir proposed the visual cryptography in 1995, they encrypted secret image into two meaningless random images, called shares, and it can be decrypted by human vision without any calculations.
Juan Justie Su-Tzu +2 more
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Peningkatan Kualitas Citra Stego pada Adaptive Pixel Block Grouping Reduction Error Expansion dengan Variasi Model Scanning pada Pembentukan Kelompok Piksel [PDF]
Jurnal Teknologi Informasi dan Ilmu Komputer, 2018 Kebutuhan komunikasi yang terus bertambah dan ditandai dengan meningkatnya jumlah IP traffic dari 744 EB menjadi 1.164 EB menjadikan keamanan sebagai salah satu kebutuhan utama dalam menjaga kerahasiaan data. Adaptive Pixel Block Grouping Reduction Error
Hendro Eko Prabowo, Tohari Ahmad
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Sub-Pixel Displacement Measurement with Swin Transformer: A Three-Level Classification Approach
Applied SciencesIn order to avoid the dependence of traditional sub-pixel displacement methods on interpolation method calculation, image gradient calculation, initial value estimation and iterative calculation, a Swin Transformer-based sub-pixel displacement ...
Yongxing Lin, Xiaoyan Xu, Zhixin Tie
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Sensors, 2008 A dynamic range expansion technique for CMOS image sensors with dual charge storage in a pixel and multiple sampling technique is presented. Each pixel contains a photodiode and a storage diode which is connected to the photodiode via a separation gate ...
Shinya Itoh +2 more
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VISUAL CRYPTOGRAPHY SCHEME ON GRAPH ACCESS STRUCTURES WITH OPTIMAL PIXEL EXPANSION FOUR [PDF]
, 2023 The strong access structure obtained from graph $G$ is $ \Gamma (G)$ if $G=(V, E)$ is a connected graph. A visual cryptography scheme (VCS) is a specific technique for encoding a secret image that typically changes any pixel in the image to $m ...
Cheraghi, Abbas, Davarzani, Mahmood
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Analysis and design of visual secret sharing scheme for gray image
网络与信息安全学报, 2020 Existing gray visual secret sharing (GVSS) convert the original image into black-white binary image for processing,which causes the pixel information loss problem.For this purpose,a kind of GVSS based on gray superposition was proposed.For each gray ...
Jian LIU, Yi ZHANG, Yuling LIU, Hao HU
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A Novel Steganography-Based Pattern for Print Matter Anti-Counterfeiting by Smartphone Cameras
Sensors, 2022 Print matter authentication based on anti-counterfeiting techniques has received continuously increasing concern from academia and industry. However, the existing printing anti-counterfeiting solutions often have the defects of poor identification ...
Hong Zheng +4 more
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International Journal of Applied Earth Observations and Geoinformation, 2021 Much environmental enforcement in the United States has historically relied on either self-reported data or physical, resource-intensive, infrequent inspections.
Ben Chugg +4 more
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Reversible data hiding with dual pixel-value-ordering and minimum prediction error expansion.
PLoS ONE, 2022 Pixel Value Ordering (PVO) holds an impressive property for high fidelity Reversible Data Hiding (RDH). In this paper, we introduce a dual PVO (dPVO) for Prediction Error Expansion (PEE), and thereby develop a new RDH scheme to offer a better rate ...
Md Abdul Wahed, Hussain Nyeem
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