Reproduction of colored images

Details Reproduction of colored images Reproduction of colored images

1982-07-13

1985-01-29

Martin, John C.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 75, G03F 308, H04N 146

Patent

active

044969686

ABSTRACT:
In colored image reproduction, we have found that for the appearance of some self-colored objects (e.g. human flesh or plant leaves) to be satisfactory, when picture elements of the object are expressed in terms of luminance (L) and two chromaticity signals (CHR1 and CHR2), each chromaticity signal is a single-valued function of the luminance. In this specification, such objects are identified by means of a mask (24) or by a color recognition circuit or both and the corresponding area of the reproduction is made under the control of the luminance signal (L) for the picture elements of the object and two chromaticity signals generated by digital look-up tables (LUT2 and LUT3) having the luminance signal as an input and loaded with functions representing the respective functions relating chromaticity to luminance for that object.

REFERENCES:
patent: 4149185 (1979-04-01), Weinger
patent: 4402007 (1983-08-01), Yamada

Affiliated with

Also associated with

Rating

Reproduction of colored images 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 colored images, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reproduction of colored images will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-509232