• DocumentCode
    329497
  • Title

    Fractal enhancement of decompressed images

  • Author

    Wakefield, P.D. ; Monro, D.M.

  • Author_Institution
    Sch. of Electron. & Electr. Eng., Bath Univ., UK
  • Volume
    1
  • fYear
    1998
  • fDate
    4-7 Oct 1998
  • Firstpage
    406
  • Abstract
    Fractal image compression successfully uses self-similarity within an image to achieve compression. By adapting fractal image compression techniques to image enhancement, an innovative new fractal technique for visual enhancement of JPEG compressed images is created. After detecting the self-similarity characteristics of a degraded JPEG image, details spoiled by quantization are enhanced using an iterative scheme and the fractal nature of the method allows resolution enhancement and fractal zooming. The effect of the scheme is an increase in the visual quality of edges in the image for almost all areas and sharper edges when the image resolution is increased. This application of fractal theory to the problem of image enhancement reveals a number of interesting avenues of investigation and promises techniques which can be used in combination with conventional methods, exploiting both self-similarity and statistical properties to achieve enhancement
  • Keywords
    data compression; decoding; fractals; image coding; image enhancement; image resolution; iterative methods; quantisation (signal); statistical analysis; JPEG compressed images; decompressed images; fractal enhancement; fractal image compression; fractal theory; fractal zooming; image edges; image enhancement; image resolution; iterative scheme; quantization; resolution enhancement; self-similarity; self-similarity characteristics; statistical properties; visual quality; Degradation; Fractals; Frequency; Image coding; Image enhancement; Image resolution; Internet; Quantization; Switches; Transform coding;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Image Processing, 1998. ICIP 98. Proceedings. 1998 International Conference on
  • Conference_Location
    Chicago, IL
  • Print_ISBN
    0-8186-8821-1
  • Type

    conf

  • DOI
    10.1109/ICIP.1998.723512
  • Filename
    723512