Appeal No. 2000-0428
Application No. 08/667,291
BACKGROUND
The invention is directed to method and apparatus for rendering a color image
using a palette of colors having uniform luminance levels. Representative claim 5 is
reproduced below.
5. Apparatus for rendering a color image in a computer, comprising:
a data structure stored in memory and containing sets of data defining a
plurality of colors, a first set of data defining a plurality of gray colors located on a
plurality of luminance levels within a color gamut, each luminance level
consisting of colors of uniform luminance and having an area and vertices, and a
second set of data defining a plurality of highly saturated colors located on the
luminance levels; and
means for combining data from the sets of data to replace an original
color of the color image in order to render the image.
The examiner relies on the following references:
Scott et al. (Scott) 4,009,527 Mar. 1, 1997
Stuart C. Wells et al. (Wells), Dithering for 12-Bit True-Color Graphics, IEEE Computer
Graphics & Applications, pp. 18-29 (Sep. 1991).1
Claims 5-10, 14, 29, and 30 stand rejected under 35 U.S.C. § 103 as being
unpatentable over Scott and Wells.
We refer to the Final Rejection (Paper No. 34) and the Examiner's Answer
(Paper No. 38) for a statement of the examiner's position and to the Brief (Paper No.
37) for appellants’ position with respect to the claims which stand rejected.
1 The copy of record appears to be a reprint of an article in a paginated journal.
-2-
Page: Previous 1 2 3 4 5 6 7 Next
Last modified: November 3, 2007