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Application of image enhancement techniques to potential field data

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Abstract

In this paper the application of image enhancement techniques to potential field data is briefly described and two improved enhancement methods are introduced. One method is derived from the histogram equalization technique and automatically determines the color spectra of geo- physical maps. Colors can be properly distributed and visual effects and resolution can be enhanced by the method. The other method is based on the modified Radon transform and gradient calculation and is used to detect and enhance linear features in gravity and magnetic images. The method facilites the detection of line segments in the transform domain. Tests with synthetic images and real data show the methods to be effective in feature enhancement.

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Authors and Affiliations

  1. Institute of Geology and Geophysics, Chinese Academy of Sciences, 100029, Beijing, China

    Zhang Lili & Hao Tianyao

  2. School of Marine and Earth Sciences, Tongji University, 200092, Shanghai, China

    Wu Jiansheng & Wang Jialin

Authors
  1. Zhang Lili
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  2. Hao Tianyao
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  3. Wu Jiansheng
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  4. Wang Jialin
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Additional information

This work is supported by the research project (grant No. G20000467) of the Institute of Geology and Geophysics, CAS and by the China Postdoctoral Science Foundation (No. 2004036083).

First Author

Zhang Lili, received a Ph. D. (2003) at Tongji University. Now she is at Institute of Geology and Geophysics, CAS. Her interests include the processing and interpretation of gravity, magnetic and MT data, image processing, GIS, and the application of the two techniques to geophysics.

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Zhang, L., Hao, T., Wu, J. et al. Application of image enhancement techniques to potential field data. Appl. Geophys. 2, 145–152 (2005). https://doi.org/10.1007/s11770-005-0017-5

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  • DOI: https://doi.org/10.1007/s11770-005-0017-5

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