Image forming device making color corrections on stored image da

Details Image forming device making color corrections on stored image da Image forming device making color corrections on stored image da

1993-09-22

1996-07-23

Wong, Peter S.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358504, 358518, 358527, 382118, 382165, 382190, H04N 123, H04N 156, H04N 160, G06K 946

Patent

active

055395236

ABSTRACT:
Any specific color (e.g., flesh-color, sky-blue and so on) is determined for its area on an original color image and corrected by the use of a matrix color correcting factor to assure a high level of reproduction of that color. Any specific color, for example flesh color, is previously extracted by pre-scanning (S1, S2). An area of the color is determined by counting its pixels included therein (S3). The determined area S of the specific color is compared with a given value C (S4). When S<C, a usual color correction is made (S6). When S>C, another kind of color correction is made (S9, S10). An area of each color is extracted (S9) and a suitable correction factor is selected (S10). All colors are separately corrected by using respectively selected correction factors, that assures a high-quality reproduction of the color image to be printed.

REFERENCES:
patent: 4007362 (1977-02-01), Sindermann
patent: 4929978 (1990-05-01), Kanamori et al.
patent: 4937662 (1990-06-01), Matsunawa et al.
patent: 5018008 (1991-05-01), Asada
patent: 5049985 (1991-09-01), Outa
patent: 5132788 (1992-07-01), Hirota
patent: 5136401 (1992-08-01), Yamamoto et al.
patent: 5142355 (1992-08-01), Fujima
patent: 5440409 (1995-08-01), Sugano et al.
patent: 5442716 (1995-08-01), Otsu et al.
Miyake, Y., et al., "Facial Pattern Detection and Color Correction from Television Picture for Newspaper Printing", Journal of Imaging Technology, vol. 16, No. 5, Oct. 1990, pp. 165-169.

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