A Comprehensive Review of Digital Data Hiding Techniques

2019 ◽  
Vol 29 (4) ◽  
pp. 639-646
Author(s):  
A. Rasmi ◽  
B. Arunkumar ◽  
V. Mohammed Anees
Author(s):  
Nomaan Jaweed Mohammed ◽  
◽  
Mohamed Manzoor Ul Hassan ◽  

2005 ◽  
Vol 05 (01) ◽  
pp. 5-35 ◽  
Author(s):  
SVIATOSLAV VOLOSHYNOVSKIY ◽  
FREDERIC DEGUILLAUME ◽  
OLEKSIY KOVAL ◽  
THIERRY PUN

In this paper we introduce and develop a framework for visual data-hiding technologies that aim at resolving emerging problems of modern multimedia networking. First, we introduce the main open issues of public network security, quality of services control and secure communications. Secondly, we formulate digital data-hiding into visual content as communications with side information and advocate an appropriate information-theoretic framework for the analysis of different data-hiding methods in various applications. In particular, Gel'fand-Pinsker channel coding with side information at the encoder and Wyner-Ziv source coding with side information at the decoder are used for this purpose. Finally, we demonstrate the possible extensions of this theory for watermark-assisted multimedia processing and indicate its perspectives for distributed communications.


Author(s):  
Md. Ashiqul Islam ◽  
Tasfia Tabassum ◽  
Md. Sagar Hossen ◽  
Shahed Hossain ◽  
Mosharof Hossain ◽  
...  

2020 ◽  
Vol 82 (12) ◽  
pp. 2635-2670 ◽  
Author(s):  
Muhammed Sit ◽  
Bekir Z. Demiray ◽  
Zhongrun Xiang ◽  
Gregory J. Ewing ◽  
Yusuf Sermet ◽  
...  

Abstract The global volume of digital data is expected to reach 175 zettabytes by 2025. The volume, variety and velocity of water-related data are increasing due to large-scale sensor networks and increased attention to topics such as disaster response, water resources management, and climate change. Combined with the growing availability of computational resources and popularity of deep learning, these data are transformed into actionable and practical knowledge, revolutionizing the water industry. In this article, a systematic review of literature is conducted to identify existing research that incorporates deep learning methods in the water sector, with regard to monitoring, management, governance and communication of water resources. The study provides a comprehensive review of state-of-the-art deep learning approaches used in the water industry for generation, prediction, enhancement, and classification tasks, and serves as a guide for how to utilize available deep learning methods for future water resources challenges. Key issues and challenges in the application of these techniques in the water domain are discussed, including the ethics of these technologies for decision-making in water resources management and governance. Finally, we provide recommendations and future directions for the application of deep learning models in hydrology and water resources.


2018 ◽  
Vol 11 (2) ◽  
pp. 77
Author(s):  
Hendro Eko Prabowo ◽  
Tohari Ahmad

The development of information and communication technology that support digital data transmission such as text, image, audio and video gives several effects. One of them is data security that becomes the main priority during the transmission process. Pixel-Value-Ordering (PVO) which one of data hiding methods can be implemented to achieve the requirement. It embeds data on maximum pixel and minimum pixel in a blok which is a part of the carrier image. However, PVO has capacity a problem, that only 2 bits per block can be hidden. To handle this problem, we propose a new approach by dividing blocks dinamically based on its complexity. These blocks are grouped into 4: smooth block, semi-smooth block, normal block and rough block. Using this approach, the stego capacity can be improved up to 2.6 times in average of  previous method by keeping the quality stego more than 65 dB for all testing image.


Author(s):  
D. R. Denley

Scanning tunneling microscopy (STM) has recently been introduced as a promising tool for analyzing surface atomic structure. We have used STM for its extremely high resolution (especially the direction normal to surfaces) and its ability for imaging in ambient atmosphere. We have examined surfaces of metals, semiconductors, and molecules deposited on these materials to achieve atomic resolution in favorable cases.When the high resolution capability is coupled with digital data acquisition, it is simple to get quantitative information on surface texture. This is illustrated for the measurement of surface roughness of evaporated gold films as a function of deposition temperature and annealing time in Figure 1. These results show a clear trend for which the roughness, as well as the experimental deviance of the roughness is found to be minimal for evaporation at 300°C. It is also possible to contrast different measures of roughness.


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