A new fractal image coding scheme employing blocks of variable shapes

2002 ◽  
Author(s):  
M. Tanimoto ◽  
H. Ohyama ◽  
T. Kimoto ◽  
S. Katsuyama ◽  
T. Fujii
Keyword(s):  
Image Coding ◽  
Coding Scheme ◽  
Fractal Image ◽  
Fractal Image Coding

SECURE FRACTAL IMAGE CODING BASED ON FRACTAL PARAMETER ENCRYPTION

Fractals ◽  
2009 ◽  
Vol 17 (02) ◽  
pp. 149-160 ◽  
Author(s):  
SHIGUO LIAN ◽  
XI CHEN ◽  
DENGPAN YE
Keyword(s):  
Image Coding ◽  
Parameter Distribution ◽  
Self Similarity ◽  
Image Encoding ◽  
Coding Scheme ◽  
Fractal Image ◽  
Fractal Image Coding ◽  
Fractal Parameters ◽  
Fractal Encoding ◽  
Computational Resources

In recent work, various fractal image coding methods are reported, which adopt the self-similarity of images to compress the size of images. However, till now, no solutions for the security of fractal encoded images have been provided. In this paper, a secure fractal image coding scheme is proposed and evaluated, which encrypts some of the fractal parameters during fractal encoding, and thus, produces the encrypted and encoded image. The encrypted image can only be recovered by the correct key. To maintain security and efficiency, only the suitable parameters are selected and encrypted through investigating the properties of various fractal parameters, including parameter space, parameter distribution and parameter sensitivity. The encryption process does not change the file format, keeps secure in perception, and costs little time or computational resources. These properties make it suitable for secure image encoding or transmission.

A genetic-algorithm based quantization method for fractal image coding

2003 ◽  
Author(s):  
M. Takezawa ◽  
H. Honda ◽  
J. Miura ◽  
H. Haseyama ◽  
H. Kitajima
Keyword(s):  
Genetic Algorithm ◽  
Image Coding ◽  
Quantization Method ◽  
Fractal Image ◽  
Fractal Image Coding

Chaos-based encryption for fractal image coding

2012 ◽  
Vol 21 (1) ◽  
pp. 010502 ◽  
Author(s):  
Ching-Hung Yuen ◽  
Kwok-Wo Wong
Keyword(s):  
Image Coding ◽  
Fractal Image ◽  
Fractal Image Coding
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