Radiation imagery chemistry: process – composition – or product th – Retrieving image made using radiation imagery
Patent
1995-12-05
1997-06-24
McPherson, John A.
Radiation imagery chemistry: process, composition, or product th
Retrieving image made using radiation imagery
382254, 382275, 382276, 364525, G03C 1100
Patent
active
056415966
ABSTRACT:
A method is disclosed of operating on a stored digital image produced by scanning the photographic element to smooth film-grain noise. The method includes extracting and storing a set of statistics of the grain pattern of the film type carrying the image, such statistics being representative of local, spatial, and spectral properties of a photographic grain pattern of that type of film; and using the stored set of statistics to operate upon the stored digital image to change such stored digital image so as to smooth film-grain noise when an image is produced.
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patent: 5065256 (1991-11-01), Suganuma et al.
patent: 5091972 (1992-02-01), Kwon et al.
patent: 5134573 (1992-07-01), Goodwin
patent: 5335013 (1994-08-01), Faber
patent: 5475425 (1995-12-01), Przyborski et al.
"Digital Image Smoothing and the Sigma Filter", by Jong-Sen Lee, Computer Vision, Graphics, and Image Processing, 24, pp. 255-269 (1983).
"Speckle Analysis and Smoothing of Synthetic Aperture Radar Images", by Jong-Sen Lee, Computer Graphics and Image Processing, 17, pp. 24-32 (1981) .
Cok David R.
Gray Robert T.
Eastman Kodak Company
McPherson John A.
Stewart Gordon M.
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