Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1991-01-15
1993-06-01
Brinich, Stephen
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
358162, G06K 936
Patent
active
052165213
ABSTRACT:
A colored photographic original is scanned at a multiplicity of points in each of the primary colors red, green and blue to generate a set of image signals for each primary color. The average luminance of the original in each primary color is calculated from the radiation used for scanning and respective first correction signals for scattered light arising during scanning are produced from the average luminances. The correction signal for each primary color is subtracted from each image signal of the corresponding set. The corrected image signals are processed to enhance the image carried by the signals. The processed signals are sent to a printer. Furthermore, the processed signals of each set are averaged and the resulting averages used to produce respective second correction signals for scattered light arising during printing. The second correction signal for each primary color is subtracted from each processed signal of the corresponding set. The corrected processed signals are then used to print the image.
REFERENCES:
patent: 3814847 (1974-06-01), Longuet
patent: 3883436 (1975-05-01), Fletcher
patent: 4746985 (1988-05-01), Waldron et al.
patent: 4876599 (1989-10-01), Kihara
patent: 4941190 (1990-07-01), Joyce
patent: 4962419 (1990-10-01), Hibbard et al.
patent: 4972256 (1990-11-01), Hirosawa et al.
Agfa-Gevaert Aktiengesellschaft
Brinich Stephen
Kontler Peter K.
LandOfFree
Reproduction of photographic originals with scattered light corr does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Reproduction of photographic originals with scattered light corr, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reproduction of photographic originals with scattered light corr will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1818887