US5297219A
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Transforms for digital images in a hierarchical environment
Assignee: Eastman Kodak Co
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Filing: 1991-06-27
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Granted: 1994-03-22
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Expires: 2011-06-27
Abstract
Abstract An improved method and associated mechanism for facilitating the transformation of digitized images intended for use in a multi-resolution, multi-application environment by performing complex transformations on low resolution image components and approximate transformations on the high level image components so as to reduce computational complexity. In a preferred embodiment of the invention, the transformation operator is executed upon a relatively low spatial resolution file, thereby resulting in a substantial reduction in processing overhead. Advantage is thus taken of the availability of the reduced size of the lower spatial resolution base file within the hierarchical database, so that a relatively complex conversion may be performed on a small number of pixels within the base file, prior to up-converting the image to a relatively high spatial resolution image, such as a 2048×3072 pixel image for driving a high resolution digital thermal color printer.
Inventors
- 👤 John A. Weldy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:47
CPC Classifications
H; H04; H04N; H04N19/00; H04N19/10; H04N19/169; H04N19/186; H04N19/60; H04N19/63
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
118 words
A method of processing a digitized image having a low resolution image component and at least one high resolution image component through a selected transformation to form a transformed high resolution digitized image comprising the steps of: (a) transforming said low resolution image component by a first transformation to form a first transformed low resolution image component; (b) predicting a high resolution image component from the first transformed low resolution image component; (c) transforming said at least one high resolution image component by a second transformation to form a transformed high resolution image component; and (d) combining said predicted high resolution image component with said transformed high resolution image component to provide a transformed high resolution digitized image.
Claim 2
Independent Claim
118 words
A method of processing a digitized image having a low resolution image component and at least one high resolution image component through a selected transformation to form a transformed high resolution digitized image comprising the steps of: (a) transforming said low resolution image component by a first transformation to form a first transformed low resolution image component; (b) predicting a high resolution image component from the first transformed low resolution image component; (c) transforming said at least one high resolution image component by a second transformation to form a transformed high resolution image component; and (d) combining said predicted high resolution image component with said transformed high resolution image component to provide a transformed high resolution digitized image.
Claim 3
Dependent Claim
17 words
The method according to claim 1 wherein the first transformation is more complex than said second transformation.
Claim 4
Dependent Claim
14 words
The method according to claim 1 wherein said second transformation is an approximate transformation.
Claim 5
Dependent Claim
14 words
The method according to claim 1 wherein said digitized image is a multi-channel image.
Claim 6
Dependent Claim
63 words
The method according to claim 4 wherein the low resolution image component of said multi-channel image is transformed by processing the image through: (a) a first set of channel independent look-up tables; (b) a first channel interdependent matrix; (c) a second set of channel independent look-up tables; (d) a second channel interdependent matrix; and (e) a third set of channel independent look-up tables.
Claim 7
Dependent Claim
31 words
The method according to claim 5 wherein the high resolution image component of said multi-channel image is transformed by processing the image through: (a) a set of channel independent look-up tables.
Claim 8
Dependent Claim
147 words
A mechanism for processing a digitized image having a low resolution image component and at least one high resolution image component through a selected transformation to form a transformed high resolution digitized image comprising: means for providing a low resolution image component; first transforming means for transforming said low resolution image component to form a transformed low resolution image component; predicting means connected to the output of said first transforming means for providing a transformed predicted high resolution image component from said transformed low resolution image component; means for providing a high resolution image component; second transforming means for transforming said at least one high resolution image component by a second transformation to form a transformed high resolution image component; and summing means for combining said transformed predicted high resolution image component with said transformed high resolution image component to provide a transformed high resolution digitized image.
Claim 9
Dependent Claim
147 words
A mechanism for processing a digitized image having a low resolution image component and at least one high resolution image component through a selected transformation to form a transformed high resolution digitized image comprising: means for providing a low resolution image component; first transforming means for transforming said low resolution image component to form a transformed low resolution image component; predicting means connected to the output of said first transforming means for providing a transformed predicted high resolution image component from said transformed low resolution image component; means for providing a high resolution image component; second transforming means for transforming said at least one high resolution image component by a second transformation to form a transformed high resolution image component; and summing means for combining said transformed predicted high resolution image component with said transformed high resolution image component to provide a transformed high resolution digitized image.
Claim 10
Dependent Claim
21 words
The mechanism according to claim 7 wherein said first transforming means performs a more complex transformation than said second transforming means.
Claim 11
Dependent Claim
15 words
The mechanism according to claim 7 wherein said second transforming means provides an approximate transformation.
Claim 12
Dependent Claim
97 words
The mechanism according to claim 7 wherein said first transforming means is comprised of: a first set of channel independent look-up tables for receiving said low resolution image component; a first channel interdependent matrix connected to the output of said first set of channel independent look-up tables; a second set of channel independent look-up tables connected to the output of said first channel interdependent matrix; a second channel interdependent matrix connected to the output of said second set of look-up tables; and a third set of channel independent look-up tables connected to said second channel independent matrix.
Claim 13
Dependent Claim
21 words
The mechanism according to claim 7 wherein said second transforming means is formed as a set of channel independent look-up tables.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-03-21 | 1997-09-20 | 1998-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-03-21 | 2001-09-20 | 2002-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-03-21 | 2005-09-20 | 2006-03-22 | $7700.00 | Window Closed / Lapsed |