• DocumentCode
    3770352
  • Title

    Image sharpening using DFT based matrix fractional order differentiator

  • Author

    Su-Ling Lee;Chien-Cheng Tseng

  • Author_Institution
    Depart. of Computer Sci. and Information Engi., Chang-Jung Christian University, Tainan, Taiwan
  • fYear
    2015
  • Firstpage
    73
  • Lastpage
    76
  • Abstract
    In this paper, the image sharpening methods using discrete Fourier transform (DFT) based matrix fractional order differentiator (MFOD) are presented. The design of fractional order differentiator (FOD) is first reviewed and the design method of DFT-based MFOD is described. Then, two image sharpening methods are studied. One method is based on Mach band effect, the other approach uses Laplacian operator. Finally, several examples are demonstrated to show the effectiveness of the proposed DFT-based MFOD method.
  • Keywords
    "Discrete Fourier transforms","Finite impulse response filters","Laplace equations","Information and communication technology","IIR filters","Symmetric matrices","Frequency response"
  • Publisher
    ieee
  • Conference_Titel
    Communications and Information Technologies (ISCIT), 2015 15th International Symposium on
  • Type

    conf

  • DOI
    10.1109/ISCIT.2015.7458310
  • Filename
    7458310
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3770352