Encoding hidden data
First Claim
Patent Images
1. A method of processing entertainment content data to encode hidden information therein, comprising:
- by reference to characteristics of the entertainment content data, establishing an initial pattern;
generating a second pattern by processing said initial pattern in accordance with symbols of a message; and
combining the second pattern with said entertainment content data to yield encoded content data.
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Abstract
A digital image is processed to hide information, by generally inconspicuous adjustments thereof. These adjustments can define a pattern that extends across some or all of the image. Desirably, the pattern is adapted to the particular image being encoded, so as to better conceal the encoding.
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Citations
20 Claims
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1. A method of processing entertainment content data to encode hidden information therein, comprising:
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by reference to characteristics of the entertainment content data, establishing an initial pattern; generating a second pattern by processing said initial pattern in accordance with symbols of a message; and combining the second pattern with said entertainment content data to yield encoded content data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of processing image data to encode hidden information, comprising:
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analyzing the image data to identify potential locations for encoding data; selecting a subset of the identified locations; and changing the image data at said selected locations. - View Dependent Claims (12, 13)
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14. A method of processing image data to encode hidden information, comprising:
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analyzing the image data to identify components thereof to which local functions can be applied without noticeable visual impairment of the image; and controlling the sign of each local function in accordance with the information to be hidden in the image. - View Dependent Claims (15, 16, 17, 18)
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19. A method of processing an image to encode hidden information, the method including:
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analyzing image data to generate first information related thereto; and by reference to said first information, selecting components of said image data that can be altered to convey information inconspicuously. - View Dependent Claims (20)
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Specification