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Selective edge enhancement using shifted anisotropic vortex filter

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Abstract

We propose a new method for selective edge enhancement using shifted anisotropic vortex phase mask. The shifted anisotropic phase mask is generated by introducing controllable anisotropy in conventional vortex mask [\( \exp \left( {i\theta } \right) \)] with the help of sine function and shifting the singularity away from the zero frequency component in the filter plane. The shifted anisotropic vortex mask is capable of enhancing the edges of the given object selectively in any desired direction.

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Acknowledgement

Manoj Kumar Sharma would like to thankfully acknowledge council of scientific and industrial research of India (CSIR) for senior research fellowship (SRF).

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Authors and Affiliations

  1. Department of Physics, Indian Institute of technology Delhi, Hauzkhas New Delhi, 110016, India

    Manoj Kumar Sharma, Joby Joseph & Paramasivam Senthilkumaran

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  1. Manoj Kumar Sharma
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  2. Joby Joseph
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  3. Paramasivam Senthilkumaran
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Correspondence to Manoj Kumar Sharma.

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Sharma, M.K., Joseph, J. & Senthilkumaran, P. Selective edge enhancement using shifted anisotropic vortex filter. J Opt 42, 1–7 (2013). https://doi.org/10.1007/s12596-012-0089-6

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  • DOI: https://doi.org/10.1007/s12596-012-0089-6

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