Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent
1990-03-19
1993-02-23
Boudreau, Leo H.
Facsimile and static presentation processing
Static presentation processing
Attribute control
358 76, G03F 308
Patent
active
051895110
ABSTRACT:
The present invention involves taking a three color signal produced by an electronic color image sensor, such as the Kodak KAF-1400 sensor with a 3G CFA filter, and performing additive-type color correction processing in a linear domain suitable for performing additive-type color correction. The additive-type processing can be performed by a matrix multiplier using three 3 element correction equations. The linear color corrected signals are converted into a domain, such as the log domain, suitable for performing subtractive-type color correction. Subtractive-type color correction is performed using three 3 element correction equations, or three 9 element correction equations. The color corrected sigtnals are then converted to an appropriate format for input to a color printer. To reduce noise enhancement problems, the color correction is performed on lowpass color signals, and the color corrected lowpass signals are combined with the original high frequency color signals. To enhance the sharpness of the color print, edge enhancement is performed in a three color enhancement space using an appropriately quantized and filtered green color signal, and coring and clipping type noise removal.
REFERENCES:
patent: 3801736 (1974-04-01), Kosaka et al.
patent: 4397545 (1983-08-01), Terashita
patent: 4409614 (1983-10-01), Eichler et al.
patent: 4679072 (1987-07-01), Takayama
patent: 4780762 (1988-10-01), Nagasaki
patent: 4982277 (1991-01-01), Katoh et al.
patent: 5045933 (1991-09-01), Tatsumi
patent: 5049985 (1991-09-01), Outa
The Theory of the Photographic Process, 4th edition, "Tone and Color Reproduction" pp. 536-577.
Karel Staes, SMPTE Journal, vol. 87, Sep. 1978, "The Role of Film in the Film-Plus-Telecine System: Considerations About Telecine Design", pp. 565-573.
Eduard Wagensonner, "Architecture of a Digital Scanner Printer System for Colour Images" (no date).
Principles of Color Television, The Hazeltine Laboratories Staff (no date).
LeRoy E. DeMarch and Edward J. Giorgianni, Physics Today, Sep. 1989, "Color Science For Imaging Systems", pp. 44-52.
Mr. L. E. DeMarsh, Color: Theory & Imaging Systems, "Color Reproduction in Color Television" pp. 184-207 (no date).
R. H. McMann, Jr. and A. A. Goldberg, Journal of the SMPTE, vol. 77, Mar. 1968, "Improved Signal Processing Techniques for Color Television Broadcasting", pp. 221-228.
Leroy E. DeMarsh, IEEE Transactions on Consumer Electronics, May 1977, "Color Rendition in Television", pp. 149-157.
R. W. G. Hunt (Fellow), I. T. Pitt, P. C. Ward, The Journal of Photographic Science, vol. 17, 1969, "The Tone Reproduction of Colour Photographic Materials" pp. 198-204.
R. W. G. Hunt, British Kinematography, Sound and Television Journal, "The Effect of Viewing Conditions on Required Tone Characteristics in Colour Photography", pp. 1-8 (no date).
Kenneth A. Parulski, IEEE Transactions on Electron Devices, vol. ED-32, No. 8, Aug. 1985, "Color Filters and Processing Alternatives for One-Chip Cameras", pp. 1381-1389.
Michael Kriss, Ken Parulski, David Lewis, Proceedings, SPIE vol. 1082, Applications of Electronic Imaging (1989) "Critical technologies for electronic still imaging systems", pp. 157-184.
K. A. Parulski, L. J. D'Luna, R. H. Hibbard, IEEE Transactions on Consumer Electronics, vol. 35, No. 3, Aug. 1989, "A Digital Color CCD Imaging System Using Custom CLSI Circuits", pp. 382-388.
Bellis, Jr. Donald C.
Giorgianni Edward J.
Hibbard Robert H.
McInerney Elizabeth
Parulski Kenneth A.
Boudreau Leo H.
Dugas Edward
Eastman Kodak Company
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