Patent US6654501B1 successfully refreshed from Google Patents.
US6654501B1
Expired / Lapsed
US
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Method of integrating a watermark into an image
Assignee: Intel Corp
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Filing: 2000-03-06
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Granted: 2003-11-25
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Expires: 2020-03-06
Abstract
Abstract In accordance with one embodiment of the invention, a method of integrating a watermark, or portion thereof, into an image, or portion thereof, includes the following. The watermark, or portion thereof, is blended into the image, or portion thereof, so as to appear as noise.
Inventors
- 👤 Tinku Acharya
- 👤 Kannan Raj
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 11:09
CPC Classifications
G; G06; G06T; G06T1/00; G06T1/0021; G06T1/0028; G06T2201/00; G06T2201/005; G06T2201/0051
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
66 words
A method of integrating an encrypted watermark, or portion thereof, into an image, or portion thereof, comprising: blending the encrypted watermark, or portion thereof, into the image, or portion thereof, so as to appear as noise, wherein blending the encrypted watermark into the image comprises dividing the encrypted watermark into 4 bit nibbles and combining the nibbles with image pixel signal values distributed over the image.
Claim 2
Independent Claim
66 words
A method of integrating an encrypted watermark, or portion thereof, into an image, or portion thereof, comprising: blending the encrypted watermark, or portion thereof, into the image, or portion thereof, so as to appear as noise, wherein blending the encrypted watermark into the image comprises dividing the encrypted watermark into 4 bit nibbles and combining the nibbles with image pixel signal values distributed over the image.
Claim 3
Dependent Claim
53 words
The method of claim 1 , wherein combining the nibbles with image pixel signal values comprises combining a particular nibble in a selected pixel location by adding or subtracting the nibble from an average of at least some of the pixel signal values of neighboring pixel locations contiguous to the selected pixel location.
Claim 4
Dependent Claim
53 words
The method of claim 2 , wherein combining a particular nibble in a selected pixel location comprises combining the particular nibble in the selected pixel location by adding or subtracting the particular nibble from an average of all of the pixel signal values of neighboring pixel locations contiguous to the selected pixel location.
Claim 5
Dependent Claim
26 words
The method of claim 1 , wherein selecting the pixel locations comprises selecting the pixel locations, at least in part, in accordance with a pseudo-random process.
Claim 6
Dependent Claim
45 words
The method of claim 4 , wherein if a pixel location selected in accordance with the pseudo-random process is located in the center of a texture region, then, for that particular pixel location, selecting a pixel location in the center of the nearest non-texture region.
Claim 7
Dependent Claim
20 words
The method of claim 5 , wherein the texture and non-texture regions comprise 3 by 3 regions of pixel locations.
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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) | 2006-11-24 | 2007-05-26 | 2007-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-11-24 | 2011-05-26 | 2011-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-11-24 | 2015-05-26 | 2015-11-25 | $7700.00 | Window Closed / Lapsed |