Zobrazeno 1 - 10
of 115
pro vyhledávání: '"Wien Hong"'
Publikováno v:
Journal of King Saud University: Computer and Information Sciences, Vol 35, Iss 9, Pp 101726- (2023)
This paper introduces an advanced grayscale-invariant authentication method for color images. Prior work directly utilizes the most significant bits (MSBs) of the red and blue channels for authentication code generation and embeds these codes into th
Externí odkaz:
https://doaj.org/article/5f4a9e5dfebd499c80b6b139e81cfacc
Publikováno v:
IEEE Access, Vol 9, Pp 6522-6535 (2021)
Color image authentication is a method that allows the detection of tampered regions on images. Existing related works evaluated their performance based on visual quality and detection capability of the marked image, but the issue of grayscale invari
Externí odkaz:
https://doaj.org/article/28024814941844d4915d1fbd40d12302
Publikováno v:
IEEE Access, Vol 9, Pp 133746-133761 (2021)
This paper presents an authentication scheme with recoverability based on Absolute moment block truncation coding (AMBTC). Previous works do not take into account characteristics of the AMBTC compressed codes. Therefore, the qualities of marked and r
Externí odkaz:
https://doaj.org/article/9a8dfef35c474970a4e7651e921190a9
Autor:
Kai-Sheng Chen, Wien Hong
Publikováno v:
Journal of the European Optical Society-Rapid Publications, Vol 16, Iss 1, Pp 1-10 (2020)
Abstract Signal buffering services such as contention resolution and congestion avoidance are essential in optical packet switching networks. In this paper, an optical memory scheme based on spectral amplitude coding (SAC) and complementary code keyi
Externí odkaz:
https://doaj.org/article/33432bdbdfdd4ef3a8112657750927ee
Publikováno v:
Applied Sciences, Vol 13, Iss 3, p 1402 (2023)
In this paper, we proposed an efficient authentication method with dual embedment strategies for absolute moment block truncation coding (AMBTC) compressed images. Prior authentication works did not take the smoothness of blocks into account and only
Externí odkaz:
https://doaj.org/article/7663e2f91f014764a580b42045c26a92
Publikováno v:
PLoS ONE, Vol 15, Iss 4, p e0230997 (2020)
The existing tamper detection schemes for absolute moment block truncation coding (AMBTC) compressed images are able to detect the tampering. However, the marked image qualities of these schemes can be enhanced, and their authentication methods may f
Externí odkaz:
https://doaj.org/article/1c889efd38c14f17959de0f1114f1848
Publikováno v:
Mathematics, Vol 9, Iss 20, p 2610 (2021)
In this paper, we propose a high-quality image authentication method based on absolute moment block truncation coding (AMBTC) compressed images. The existing AMBTC authentication methods may not be able to detect certain malicious tampering due to th
Externí odkaz:
https://doaj.org/article/83691cffed34441a8be09e3f86300202
Publikováno v:
PLoS ONE, Vol 14, Iss 2, p e0212802 (2019)
In this paper, we propose an efficient method for authenticating the absolute moment block truncation coding (AMBTC) compressed images with the capability to recover tampered blocks. The existing methods may not be able to detect some types of intent
Externí odkaz:
https://doaj.org/article/b000592ddaca476781d6bdaa5787159c
Publikováno v:
Applied Sciences, Vol 11, Iss 2, p 619 (2021)
Absolute moment block truncated coding (AMBTC) is a lossy image compression technique aiming at low computational cost, and has been widely studied. Previous studies have investigated the performance improvement of AMBTC; however, they often over des
Externí odkaz:
https://doaj.org/article/804a3db900354baab4eae161648ac57e
Autor:
Kai-Sheng Chen, Wien Hong
Publikováno v:
Applied Sciences, Vol 10, Iss 3, p 730 (2020)
Generalized multi-protocol label-switching (GMPLS) provides packet-switching with multiple speeds and quality-of-services (QoSs). Packet buffering in GMPLS reduces packet loss by resolving the conflicts between packets requesting for a common channel
Externí odkaz:
https://doaj.org/article/988a46df76c04f7b995fa3e22b66b929