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Color correction using a device-dependent display profile
Assignee: Eastman Kodak Co
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Filing: 2004-01-29
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Granted: 2007-05-08
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Expires: 2024-01-29
Abstract
Abstract A method includes obtaining a chromatic correction for a display device based on a device-dependent display profile. The method may ensure that images that appear on a display device in a soft proofing environment will be visually equivalent to images that appear on print media.
Inventors
- 👤 Christopher J. Edge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:51
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/46; H04N1/56; H04N1/60; H04N1/603; H04N1/6052; G; G09; G09G; G09G5/00; G09G5/02; H04N1/6083; H04N1/6088; H04N1/62; H04N1/622
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
61 words
A method comprising: determining chromaticity corrections corresponding to red, green, blue, cyan, magenta and yellow regions of color in a linear device-dependent coordinate space associated with an output device; applying the chromaticity corrections to device-independent coordinates throughout said corresponding regions of color to produce chromatically corrected device-independent coordinates; and displaying colors on a display based on the chromatically corrected device-independent coordinates.
Claim 2
Independent Claim
61 words
A method comprising: determining chromaticity corrections corresponding to red, green, blue, cyan, magenta and yellow regions of color in a linear device-dependent coordinate space associated with an output device; applying the chromaticity corrections to device-independent coordinates throughout said corresponding regions of color to produce chromatically corrected device-independent coordinates; and displaying colors on a display based on the chromatically corrected device-independent coordinates.
Claim 3
Dependent Claim
32 words
The method of claim 1 wherein determining chromaticity corrections further comprises calculating correction factors corresponding to each region of color that are piecewise linear correction functions within the corresponding regions of color.
Claim 4
Dependent Claim
23 words
The method of claim 2 wherein each piecewise linear correction function operates on the linear device-dependent coordinates within the corresponding region of color.
Claim 5
Dependent Claim
14 words
The method of claim 3 wherein the linear device-dependent coordinates comprise linear RGB coordinates.
Claim 6
Dependent Claim
40 words
The method of claim 1 wherein determining chromaticity corrections further comprises calculating a set of correction levels, wherein the correction levels correspond to adjustments to the hue, saturation, and brightness for the corresponding regions of color for the chromaticity corrections.
Claim 7
Dependent Claim
14 words
The method of claim 5 wherein the device-independent coordinates comprise coordinates in tristimulus space.
Claim 8
Dependent Claim
14 words
The method of claim 5 wherein the device-independent coordinates comprise coordinates in chromaticity space.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2010-05-07 | 2010-11-06 | 2011-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2014-05-07 | 2014-11-06 | 2015-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2018-05-07 | 2018-11-06 | 2019-05-08 | $7700.00 | Window Closed / Lapsed |