Abstract

Images obtained by an aberration-free system are digitally defocused with progressive values of defocusing. Wiener filtering restoration is applied to the defocused images, and the defocusing range for effective restoration is shown. The stability of the filters for restoring images with spatially variant defocusing is also discussed.

© 1983 Optical Society of America

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References

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  1. W. K. Pratt, Digital Image Processing (Wiley-Interscience, New York, 1978).
  2. G. Haüsler, Opt. Commun. 6, 38 (1972).
    [CrossRef]
  3. J. W. Goodman, Introduction to Fourier Optics (McGraw-Hill, New York, 1968).
  4. H. H. Hopkins, M. J. Yzuel, Opt. Acta 17, 157 (1970).
    [CrossRef]

1972 (1)

G. Haüsler, Opt. Commun. 6, 38 (1972).
[CrossRef]

1970 (1)

H. H. Hopkins, M. J. Yzuel, Opt. Acta 17, 157 (1970).
[CrossRef]

Goodman, J. W.

J. W. Goodman, Introduction to Fourier Optics (McGraw-Hill, New York, 1968).

Haüsler, G.

G. Haüsler, Opt. Commun. 6, 38 (1972).
[CrossRef]

Hopkins, H. H.

H. H. Hopkins, M. J. Yzuel, Opt. Acta 17, 157 (1970).
[CrossRef]

Pratt, W. K.

W. K. Pratt, Digital Image Processing (Wiley-Interscience, New York, 1978).

Yzuel, M. J.

H. H. Hopkins, M. J. Yzuel, Opt. Acta 17, 157 (1970).
[CrossRef]

Opt. Acta (1)

H. H. Hopkins, M. J. Yzuel, Opt. Acta 17, 157 (1970).
[CrossRef]

Opt. Commun. (1)

G. Haüsler, Opt. Commun. 6, 38 (1972).
[CrossRef]

Other (2)

J. W. Goodman, Introduction to Fourier Optics (McGraw-Hill, New York, 1968).

W. K. Pratt, Digital Image Processing (Wiley-Interscience, New York, 1978).

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