Results 121 to 130 of about 3,671 (229)
Image Watermarking based on Huffman Coding and Laplace Sharpening
مجلة كلية التربية للبنات, 2019 In this paper, an algorithm through which we can embed more data than the regular methods under spatial domain is introduced. We compressed the secret data using Huffman coding and then this compressed data is embedded using laplacian sharpening method ...
Muna M. Lafta
doaj
, 2021 In this work, A Huffman source coding system is studied and implemented. The work will go through the basics of the source coding theorem, standard Huffman code is introduced, its weaknesses in a practical system are presented, and finally, methods and ...
Koivula, Antti
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A cryptographic method to have a secure communication of health care digital data into the cloud
AutomatikaCloud computing is a technology that holds great promise and has potential to revolutionize the healthcare sector. Many security and privacy issues are brought up by the cloud’s centralization of data for both patients and healthcare professionals. There
K. Selvakumar, S. Lokesh
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, 2017 Perkembangan teknologi dan informasi dibidang keamritiman sedang berjalan dengan cepat. Salah satunya adalah Underwater Wireless Sensor Networks (UWSNs). UWSNs adalah kumpulan node sensor yang terpisah di area bawah air dengan tujuan tertentu.
Pangestu, Dzakwan Widyo
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, 2019 Data size minimization is the focus of data compression procedures by altering representation and reducing redundancy of information to a more effective kind. In general, lossless approach is favoured by a number of compression methods for the purpose of
Ibrahim, M. B., Gbolagade, K. A.
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Tongxin xuebao, 2013 For the MIMO channels with space correlation and time correlation, a novel joint space-time Huffman limited feedback precoding scheme was proposed which improves the system performance and reduces the amount of feedback.
Mei-yan JU +3 more
doaj
, 2014 This presentation explains how works the Huffman coding.
Helder Oliveira (576027)
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Maximum Likelihood Decoder for Variable Length Codes
Sir Syed University Research Journal of Engineering and Technology, 2012 Variable Length Codes (VLC) are used to transfer same amount of digital information in relatively short period of time. In variable length coding, the characters with higher probability of occurrence are assigned shorter bits sequence and the characters
Syed Misbahuddin, Mohammed Talal Simsim
doaj
improving performance of network covert timing channel through huffman coding
, 2011 Network covert channel is a mechanism used to transfer covert message violating security policies through network. Performance of a channel is crucial to an attacker.
Jingzheng Wu +3 more
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Parallel lossless image compression using Huffman and arithmetic coding
, 1992 We show that high-resolution images can be encoded and decoded efficiently in parallel. We present an algorithm based on the hierarchical MLP method, used either with Huffman coding or with a new variant of arithmetic coding called quasi-arithmetic ...
Paul G. Howard, Jeffrey Scott Vitter
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