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Fractal Image Compression Based on High Entropy Values Technique


 
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1. Title Title of document Fractal Image Compression Based on High Entropy Values Technique
 
2. Creator Author's name, affiliation, country Douaa Younis Abbaas; Departement of Computer Science, College of Science, Mustansiriyah University, IRAQ.; Iraq
 
3. Subject Discipline(s)
 
3. Subject Keyword(s) Fractal Image Compression, Entropy, Image Quality, Domain Pool, Similarity, En-coding
 
4. Description Abstract There are many attempts tried to improve the encoding stage of FIC because it consumed time. These attempts worked by reducing size of the search pool for pair range-domain matching but most of them led to get a bad quality, or a lower compression ratio of reconstructed image. This paper aims to present a method to improve performance of the full search algorithm by combining FIC (lossy compression) and another lossless technique (in this case entropy coding is used). The entropy technique will reduce size of the domain pool (i. e., number of domain blocks) based on the entropy value of each range block and domain block and then comparing the results of full search algorithm and proposed algorithm based on entropy technique to see each of which give best results (such as reduced the encoding time with acceptable values in both compression quali-ty parameters which are C. R (Compression Ratio) and PSNR (Image Quality). The experimental results of the proposed algorithm proven that using the proposed entropy technique reduces the encoding time while keeping compression rates and reconstruction image quality good as soon as possible.
 
5. Publisher Organizing agency, location Mustansiriyah University
 
6. Contributor Sponsor(s)
 
7. Date (YYYY-MM-DD) 2018-04-11
 
8. Type Status & genre Peer-reviewed Article
 
8. Type Type
 
9. Format File format PDF
 
10. Identifier Uniform Resource Identifier http://mjs.uomustansiriyah.edu.iq/ojs1/index.php/MJS/article/view/507
 
10. Identifier Digital Object Identifier (DOI) http://dx.doi.org/10.23851/mjs.v28i2.507
 
11. Source Title; vol., no. (year) Al-Mustansiriyah Journal of Science; Vol 28, No 2 (2017)
 
12. Language English=en en
 
14. Coverage Geo-spatial location, chronological period, research sample (gender, age, etc.)
 
15. Rights Copyright and permissions Copyright (c) 2018 Al-Mustansiriyah Journal of Science
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