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Journal of the Optical Society of America

Journal of the Optical Society of America

  • Vol. 52, Iss. 6 — Jun. 1, 1962
  • pp: 669–672

Wiener-Spectrum Analysis of Photographic Granularity

EDWARD C. DOERNER  »View Author Affiliations

JOSA, Vol. 52, Issue 6, pp. 669-672 (1962)

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In a photographic printing process, the granularity mottle which represents the printed-through granularity pattern of the negative can be analyzed best by means of the Weiner spectrum of its density fluctuations. A theory is given for the linear transfer of granularity through a printing process, and results are given for a series of optical and contact prints. The case of mottle arising in x-ray screen exposures is similar; it is shown that the measuring techniques will evaluate the effects of various screens.

EDWARD C. DOERNER, "Wiener-Spectrum Analysis of Photographic Granularity," J. Opt. Soc. Am. 52, 669-672 (1962)

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  1. G. C. Higgins and K. F. Stultz, J. Opt. Soc. Am. 49, 925 (1959).
  2. R. C. Jones, J. Opt. Soc. Am. 45, 799 (1955).
  3. H. J. Zweig, J. Opt. Soc. Am. 46, 805, 812 (1956); 49, 238 (1959).
  4. A. Marriage and E. Pitts, J. Opt. Soc. Am. 46, 1019 (1956).
  5. This term is now being used by the Kodak Research Laboratories in place of what has been variously called "sine-wave response," "contrast transmission function," etc., in accordance with recommendations formulated in July, 1961, by the Subcommittee for Image Assessment Problems of the International Commission for Optics. See J. Opt. Soc. Am. 51, 1441 (1961).
  6. R. L. Lamberts, J. Opt. Soc. Am. 48, 490 (1958).
  7. R. L. Lamberts, J. Opt. Soc. Am. 49, 425 (1959).
  8. The data presented in this paper are representative of the emulsions manufactured at the time the experiments were made. However, it must be recognized that the characteristics of products of the same name may vary within manufacturing tolerances and may change significantly as improvements are effected.
  9. K. Rossmann, J. Opt. Soc. Am. (to be published).

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