[1]CUI Zhao-hui,LIU Ji-wei,WANG Zhi-liang,et al.The impact of parameter selection on fractal image coding algorithm performance[J].CAAI Transactions on Intelligent Systems,2010,5(3):233-239.
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The impact of parameter selection on fractal image coding algorithm performance

CAAI Transactions on Intelligent Systems[ISSN 1673-4785/CN 23-1538/TP] Volume: 5 Number of periods: 2010 3 Page number: 233-239 Column: 学术论文—人工智能基础 Public date: 2010-06-25
Title:
The impact of parameter selection on fractal image coding algorithm performance
Author(s):
CUI Zhao-hui;  LIU Ji-wei;  WANG Zhi-liang;  QU Bo
School of Information Engineering, University of Science and Technology Beijing, Beijing 100083, China
Keywords:
fractal image coding;  image activity measure(IAM);  PSNR estimation;  parameter selection
CLC:
TP311
DOI:
-
Abstract:
A number of parameters need to be determined before a fractal image coding algorithm can be used. The performance of the algorithm is directly affected by the selection of parameters. Determining the optimal values is the first problem that each researcher and user faces. Analysis of basic fractal image encoding and decoding algorithms showed the quality of a decoded image, as measured by the peak signaltonoise ratio (PSNR), is not only related to the size of range blocks, but also the Image activity measure (IAM). Experiments showed that, for each range block, the relationship between PSNR and IAM is logarithmic. Moreover, the experiments indicated that only 6 iterations were required in the decoding process before an image went to a steady state.
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