Two-domain chroma boost method for color printing
AssigneeLexmark International, Inc.
InventorsXuan Chao Huang, Brant Dennis Nystrom, Richard Lee Reel
Life of this patent
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Abstract
A method of transforming two color domains of an original target color profile in a universal color space includes receiving information characterizing the original target color profile. A non-flesh-tone domain chroma boost curve is constructed. The non-flesh-tone domain chroma boost curve is applied to the original target color profile to generate an intermediate target color profile. A flesh-tone domain boundary in the intermediate target color profile is determined. A flesh-tone domain chroma boost curve is constructed. A new target color profile is established by applying the flesh-tone domain chroma boost curve to the intermediate target color profile.
Claims17
A method of transforming two color domains of an original target color profile in a universal color space, comprising the steps of:
- receiving information characterizing said original target color profile;
- constructing a non-flesh-tone domain chroma boost curve;
- applying said non-flesh-tone domain chroma boost curve to said original target color profile to generate an intermediate target color profile;
- determining a flesh-tone domain boundary in said intermediate target color profile;
- constructing a flesh-tone domain chroma boost curve;
- and
- establishing a new target color profile by applying said flesh-tone domain chroma boost curve to said intermediate target color profile.
A method of transforming two color domains of an original target color profile in a universal color space, comprising the steps of:
- receiving information characterizing said original target color profile;
- constructing a first chroma boost curve;
- applying said first chroma boost curve to said original target color profile to generate an intermediate target color profile;
- constructing a second chroma boost curve;
- and
- establishing a new target color profile by applying said second chroma boost curve to a selected portion of said intermediate target color profile.
Dependencies are inferred from the claim text.