Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent
1996-12-26
1998-05-05
Wong, Peter S.
Facsimile and static presentation processing
Facsimile
Recording apparatus
358505, 358516, 348222, H04N 973, H04N 576
Patent
active
057483078
ABSTRACT:
There is provided an image pickup apparatus excellent in color reproducibility without requiring a complicated circuit. In image pickup operation, a sum pixel signal (S.sub.CCD) output from a color image pickup element (100) is converted into digital sum pixel data (D.sub.CCD) through a sample/hold circuit (102) and an A/D converter (104). The digital sum pixel data is stored and held in a frame memory (106). In image reproduction, an arithmetic operation unit (108) executes an arithmetic processing program in a program memory (110) to read out the sum pixel data (D.sub.CCD) from the frame memory (106). The pixel data are multiplied by predetermined white balance adjustment coefficients, and color difference signals (B-Y) and (R-Y) of the horizontal lines are calculated. In order to complement color difference signals of horizontal lines which are short, the color difference signals (B-Y) and (R-Y) are added and averaged in accordance with predetermined relations to form color difference signals of all horizontal lines, thereby realizing image reproduction excellent in color reproducibility.
REFERENCES:
patent: 5428389 (1995-06-01), Ito et al.
patent: 5517239 (1996-05-01), Nakayama
patent: 5541648 (1996-07-01), Udagawa et al.
patent: 5579047 (1996-11-01), Yamagami et al.
patent: 5581298 (1996-12-01), Sasaki et al.
Furuta Haruki
Nakamura Hideo
Chinon Kabushiki Kaisha
Toatley , Jr. Gregory J.
Wong Peter S.
LandOfFree
Image pickup apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Image pickup apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image pickup apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-60316