Journal of Applied Sciences ›› 2012, Vol. 30 ›› Issue (6): 635-641.doi: 10.3969/j.issn.0255-8297.2012.06.013

• Signal and Information Processing • Previous Articles     Next Articles

Fractal Dimension Calculation of Spectrum Response Curve for Edge Enhancement

HU Qing-wu1, YUAN Hui1, SU Jun-ying2   

  1. 1. School of Remote Sensing and Information Engineering, Wuhan University, Wuhan 430079, China
    2. School of Resource and Environment Science, Wuhan University, Wuhan 430079, China
  • Received:2012-06-24 Revised:2012-10-15 Online:2012-11-27 Published:2012-10-15

Abstract: In this paper, an algorithm for differential step measurement fractal dimension calculation of the spectrum response curve is proposed for image edge enhancement. A differential spectrum curve is first calculated. A step measurement fractal dimension algorithm is then presented for the differential spectrum curve. Finally, the differential fractal feature image is generated for the feature analysis of hyperspectral images. Experiment results show that the presented algorithm can enhance edges while preserving detailed textures and reducing noise. The proposed method can be used in the feature extraction and analysis of hyperspectral images.

Key words: spectrum response curve, differential step fractal measurement, edge enhancement,  fractal dimension

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