Image analysis – Color image processing – Color correction
Patent
1997-12-12
2000-08-08
Nguyen, Madeleine
Image analysis
Color image processing
Color correction
358520, G06K 900, G03F 308
Patent
active
061012726
ABSTRACT:
The improved color transformation method comprises determining for each pixel a lightness component specified between a maximum and a minimum value for three signals and chromaticity components obtained by excluding the lightness component from the three signals, amplifying or attenuating the thus obtained chromaticity components in accordance with the three signals and adding them to the lightness component amplified or attenuated in accordance with the three signals. Even if the input original image is a subject, a transmission original hardcopy image, a reflection original softcopy image or an original softcopy image, one can create a reproduced hardcopy image such as a reflective print which is extremely faithful to the input original image or, alternatively, one can provide a monitor display of a reproduced image (a reproduced soft copy image) which is also extremely faithful to the input original image. The processing system is very simple and permits realtime execution. Even transmission original hardcopy images and original softcopy images which are upset in either color balance or density balance or both can be effectively processed to yield reproduced reflection hardcopy image or reproduced softcopy images which feature good balances.
REFERENCES:
patent: 4839718 (1989-06-01), Hemsky et al.
patent: 4963925 (1990-10-01), Miyazaki
patent: 5060060 (1991-10-01), Udagawa
patent: 5317426 (1994-05-01), Hoshino
patent: 5363218 (1994-11-01), Hoshino
patent: 5384601 (1995-01-01), Yamashita et al.
patent: 5450216 (1995-09-01), Kasson
patent: 5488670 (1996-01-01), Suzuki et al.
patent: 5502579 (1996-03-01), Kita et al.
Fuji Photo Film Co. , Ltd.
Nguyen Madeleine
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