A modified alpha-root technique for image processing

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Abstract

Image enhancement using Fourier transform coefficient rooting (often referred to as alpha-rooting) suffers from certain objectionable artifacts due to the processing. Such artifacts are caused by well-defined high contrast edges within the image. A modification of the usual alpha-rooting process is proposed whereby these artifacts are suppressed while the desirable enhancement features of the processing are retained.

References (3)

  • W.K. Pratt

    Digital Image Processing

    (1978)
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Work performed under the auspices of the U.S. Department of Energy by the Lawrence Livermore National Laboratory under contract number w-7405-ENG-48.

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