Results 11 to 20 of about 101,085 (211)

High capacity steganographic method based upon JPEG [PDF]

open access: yes, 2008
The two most important aspects of any image-based steganographic system are the quality of the stegoimage and the capacity of the cover image. This paper proposes a novel and high capacity steganographic approach based on Discrete Cosine Transformation (
Al-Mohammad, A, Ghinea, G, Hierons, RM
core   +8 more sources

JPEG steganography: A performance evaluation of quantization tables [PDF]

open access: yes, 2009
The two most important aspects of any image based steganographic system are the imperceptibility and the capacity of the stego image. This paper evaluates the performance and efficiency of using optimized quantization tables instead of default JPEG ...
Al-Mohammad, A, Ghinea, G, Hierons, RM
core   +8 more sources

JPEG column: 74th JPEG meeting

open access: yesACM SIGMultimedia Records, 2017
The 74th JPEG meeting was held at ITU Headquarters in Geneva, Switzerland, from 15 to 20 January featuring the following highlights: •A Final Call for Proposals on JPEG Pleno was issued focusing on light field coding; •Creation of a test model for the upcoming JPEG XS standard; •A draft Call for Proposals for JPEG Privacy &
Antonio Pinheiro
openaire   +2 more sources

Digital compression and coding of continuous-tone still images [PDF]

open access: yes, 2008
This CCITT Recommendation | ISO/IEC International Standard was prepared by CCITT Study Group VIII and the Joint Photographic Experts Group (JPEG) of ISO/IEC JTC 1/SC 29/WG 10.

core   +9 more sources

Quantum JPEG

open access: yesAVS Quantum Science, 2023
The joint photographic expert group algorithm compresses a digital image by filtering its high spatial-frequency components. Similarly, we introduce a quantum algorithm that uses the quantum Fourier transform to discard the high spatial-frequency qubits of an image, downsampling it to a lower resolution.
Simone Roncallo   +2 more
openaire   +3 more sources

Steganography-based secret and reliable communications: Improving steganographic capacity and imperceptibility [PDF]

open access: yes, 2010
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.Unlike encryption, steganography hides the very existence of secret information rather than hiding its meaning only.
Al-Mohammad, Adel
core   +7 more sources

Generation of a Panorama Compatible with the JPEG 360 International Standard Using a Single PTZ Camera

open access: yesApplied Sciences, 2021
Recently, the JPEG working group (ISO/IEC JTC1 SC29 WG1) developed an international standard, JPEG 360, that specifies the metadata and functionalities for saving and sharing 360-degree images efficiently to create a more realistic environment in various
Faiz Ullah, Oh-Jin Kwon, Seungcheol Choi
doaj   +1 more source

Fast Carrier Selection of JPEG Steganography Appropriate for Application

open access: yesTsinghua Science and Technology, 2020
In recent years, the improvement of the security of steganography mainly involves not only carrier security but also distortion function. In the actual environment, the existing method of carrier selection is limited by its complex algorithm and slow ...
Weixiang Ren   +4 more
doaj   +1 more source

Image transmorphing with JPEG [PDF]

open access: yes2015 IEEE International Conference on Image Processing (ICIP), 2015
Picture-related applications are extremely popular because pictures present attractive and vivid information. Nowadays, people record everyday life, communicate with each other, and enjoy entertainment using various interesting imaging applications. In many cases, processed images need to be recovered to their original versions.
Lin Yuan 0002, Touradj Ebrahimi
openaire   +3 more sources

Coverless Steganography Based on Low Similarity Feature Selection in DCT Domain [PDF]

open access: yesRadioengineering, 2023
Coverless image steganography typically extracts feature sequences from cover images to map information. Once the extracted features have high similarity, it is challenging to construct a complete mapping sequence set, which places a heavy burden on the ...
L. Tan, J. Liu, Y. Zhou, R. Chen
doaj  

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