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EP0619555A2
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EP
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Method for optimal color rendering of multiple objects in a page description
Assignee: Eastman Kodak Co
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Filing: 1994-03-11
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Granted: —
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Expires: 2014-03-11
Abstract
Abstract Multiple color objects are optimally rendered in a single print job, such that, for example, the rendering of presentation graphics images may be carried out differently than the rendering of sampled images, by use of remapped graphics paint operators and a plurality of color rendering dictionaries that operate in the interpretation of a page description in a computer-based publishing system.
Inventors
- 👤 Anthony James C/O Eastman Kodak Company Leone
- 👤 Steven Michael C/O Eastman Kodak Company Smith
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-10 01:20
CPC Classifications
G; G06; G06F; G06F3/00; G06F3/12; G06F3/1201; G06F3/1202; G06F3/1203; G06F3/1208; G06F3/1206; G06F3/1223; G06F3/1237; G06F3/1244; G06F3/1248; G06F3/1253; G06F3/1278; G06F3/1284; G06T; G06T11/00; G06T11/10
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
147 words
A method for optimal color rendering of multiple objects in a page description, the objects having object types, comprising the steps of: a) providing a plurality of color rendering dictionaries, wherein each dictionary may be used to implement a particular color transformation of the color values of an object to be rendered; b) establishing a first painting operator for the painting of a graphical shape object type; c) remapping the first painting operator to cause the rendering of objects being of the graphical shape object type to be implemented according to a first one of said color rendering dictionaries; d) establishing a second painting operator for the painting of a sampled image object type; and e) remapping the second painting operator to cause the rendering of objects being of the sampled image object type to be implemented according to a second one of said color rendering dictionaries.
Claim 2
Dependent Claim
15 words
The method of claim 1, wherein the first painting operator is the PostScript setcolor operator.
Claim 3
Dependent Claim
15 words
The method of claim 1, wherein the second painting operator is the PostScript image operator.
Claim 4
Dependent Claim
25 words
The method of claim 1, wherein the color transformation in at least one of said color rendering dictionaries is optimized for printing a reflection print.
Claim 5
Dependent Claim
24 words
The method of claim 1, wherein the color transformation in at least one of said color rendering dictionaries is optimized for printing a transparency.
Claim 6
Dependent Claim
29 words
The method of claim 1, wherein the color transformation in at least one of said color rendering dictionaries is optimized for a presentation graphics image quality color rendering mode.
Claim 7
Dependent Claim
28 words
The method of claim 1, wherein the color transformation in at least one of said color rendering dictionaries is optimized for a photographic image quality color rendering mode.
Claim 8
Dependent Claim
27 words
The method of claim 1, wherein the color transformation in at least one of said color rendering dictionaries is optimized for a colorimetric matching color rendering mode.
Claim 9
Dependent Claim
27 words
The method of claim 1, wherein the color transformation in at least one of said color rendering dictionaries is optimized for a color morphing color rendering mode.
Claim 10
Dependent Claim
29 words
The method of claim 1, wherein the color transformation in at least one of said color rendering dictionaries is optimized for an Adobe PostScript Level 1 color rendering mode.
Claim 11
Dependent Claim
48 words
The method of claim 1, wherein the plurality of the color rendering dictionaries is based on a the combination of one or more of: a cascaded series of 3 x 3 color transformation matrices, a group of three-dimensional trilinear interpolation look up tables, or one-dimensional color transform functions.
Claim 12
Dependent Claim
35 words
The method of claim 1, wherein each color rendering dictionary is associated with the combination of one or more of the following: a predetermined print mode, a predetermined color rendering mode, and an object type.
References Cited (Backward Citations)
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