Color Image or Video Processing
First Claim
1. A method of color masking an image or video comprising:
- reading color values of an image sample of the image or video and a corresponding change of an attribute of the image sample; and
based on the color values of the image sample, mapping the change in the image sample attribute to a change in color components of the image sample that is equivalent to the change in the image sample attribute, yet reduces visibility of the change in the image sample attribute for the specific color values of the image sample.
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Abstract
The present invention relates generally to color image processing. One claim recites a method of color masking an image including: reading color values of an image sample and a corresponding change of an attribute of the image sample; and based on the color values of the image sample, mapping the change in the image sample attribute to a change in color components of the image sample that is equivalent to the change in the image sample attribute, yet reduces visibility of the change in the image sample attribute for the specific color values of the image sample. Another claim recites a method including: obtaining data representing digital imagery or video; analyzing at least a portion of the data to determine one or more color characteristics associated with the at least a portion of the data, said act of analyzing yielding a result; based at least in part on the result, generating a key; and embedding auxiliary data in the data representing digital imagery or video using the key. Still another claim recites a user interface method for use with a watermark encoder, including: presenting a user interface to enable a user to control strength of a watermark to be encoded in a specified color or color region; based on user input, controlling strength of a watermark encoded in the specified color or color region. Of course other claims and combinations are provided as well.
66 Citations
16 Claims
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1. A method of color masking an image or video comprising:
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reading color values of an image sample of the image or video and a corresponding change of an attribute of the image sample; and based on the color values of the image sample, mapping the change in the image sample attribute to a change in color components of the image sample that is equivalent to the change in the image sample attribute, yet reduces visibility of the change in the image sample attribute for the specific color values of the image sample. - View Dependent Claims (2, 3, 4, 5, 6)
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7. In a watermark encoder, a user interface method comprising:
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presenting a user interface to enable a user to control strength of a watermark to be encoded in a specified color or color region of a digital image or video; based on user input, controlling strength of a watermark encoded in the specified color or color region of the digital image or video. - View Dependent Claims (8, 9, 10, 11)
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12. A method comprising:
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obtaining data representing digital imagery or video; analyzing at least a portion of the data to determine one or more color characteristics associated with the at least a portion of the data, said act of analyzing yielding a result; based at least in part on the result, generating a key; and embedding auxiliary data in the data representing digital imagery or video using the key. - View Dependent Claims (13, 14)
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15. A method comprising:
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obtaining a measure or value associated with one or more color characteristics of data representing video or imagery; based at least in part on the measure or value, determining for the data those samples that should receiving steganographic encoding; transforming at least some of the data into a transform domain; and altering transform domain coefficients of the at least some data that has been transformed to steganographically encode the data. - View Dependent Claims (16)
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Specification