Apparatus and method for the measurement of grain in images

Details Apparatus and method for the measurement of grain in images Apparatus and method for the measurement of grain in images

1996-11-19

1998-01-20

Le, Hoa Van

Radiation imagery chemistry: process, composition, or product th

Including control feature responsive to a test or measurement

430360, 430362, G03C 502

Patent

active

057099723

ABSTRACT:
A generalized grain ruler incorporating a plurality of uniform patches representing a range of granularities, each patch being a perceptually distinct representation of graininess spaced at perceptually uniform intervals and recorded in an increasing sequence of graininess. A method for producing a generalized grain ruler for the measurement, by comparison of, grain in a reference imaging system generated image, comprising, the steps of:

REFERENCES:
patent: 5498512 (1996-03-01), James et al.
T.O. Maier and D. R. Miller, "The Relationship Between Graininess and Granularity" SPSE's 43 Annual Conference Proceedings, SPSE, Springfield, Virginia pp. 207-208 May 20-25,1 990.
"Print Grain Index-An Assessment of Print Graininess for Color Negative Films", Kodak Publication No. E-58, CAT 887 5809, Jun. 1994.
J.C. Dainty and R. Shaw, "Image Noise Analysis and the Wiener Spectrum", Image Science Academic Press, New York, Chapter 8 (1974).

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