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A technique for image magnification using partitioned iterative function system

✍ Scribed by Suman K. Mitra; C.A. Murthy; Malay K. Kundu

Publisher
Elsevier Science
Year
2000
Tongue
English
Weight
866 KB
Volume
33
Category
Article
ISSN
0031-3203

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✦ Synopsis

A new technique for image magni"cation using the theory of fractals is proposed. The technique is designed assuming self-transformability property of images. In particular, the magni"cation task is performed using the fractal code of the image instead of the original one resulting in a reduction in memory requirement. To generate the fractal codes, Genetic Algorithm with elitist model is used which greatly decreases the search for "nding self similarities in the given image. The article presents both theory and implementation of the proposed method. A simple distortion measure scheme and a similarity criterion based on just noticeable di!erence have also been proposed to judge the image quality of the magni"ed image. Comparison with one of the most popular magni"cation techniques, the nearest-neighbor technique, is made.

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