Method and apparatus for printing a black-and-white image...

Details Method and apparatus for printing a black-and-white image... Method and apparatus for printing a black-and-white image...

2005-05-17

2005-05-17

Wallerson, Mark (Department: 2626)

Facsimile and static presentation processing

Static presentation processing

Attribute control

C358S001900, C358S501000, C358S520000, C358S505000

Reexamination Certificate

active

06894807

ABSTRACT:
Color image information is converted to black-and-white image information. Based on the converted black-and-white image information, a black-and-white printout is obtained. At least either brightness or saturation is independently controlled for each desired hue, based on a color image signal carrying the color image information. The controlled color image signal is converted to a black-and-white image signal carrying the black-and-white image information, and the black-and-white printout is obtained based on the converted black-and-white image signal.

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Weeks et al., “Histogram Equalization of 24-bit Color Images in the Color Difference (C-Y) Color Space”, pp. 15-22, Jan. 1995, Journal of Electronic Imaging, vol. 4, No. 1.

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