Digital watermarking methods, apparatus and systems
First Claim
1. A method comprising:
- obtaining a first color channel and a second color channel, the first color channel and the second color channel are components of a color image signal or color video signal;
obtaining a digital watermark orientation pattern, the orientation pattern serving to facilitate detection of a watermark message;
separating the digital watermark orientation pattern into first frequency components and second frequency components;
utilizing a programmed electronic processor or electronic processing circuitry, transforming the first color channel by steganographically embedding the first frequency components therein; and
utilizing a programmed electronic processor or electronic processing circuitry, transforming the second color channel by steganographically embedding the second frequency components therein.
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Abstract
The present invention relate generally to digital watermarking and data hiding. One claim recites a method including: obtaining a first color channel and a second color channel, the first color channel and the second color channel are components of a color image signal or color video signal; obtaining a digital watermark orientation pattern, the orientation pattern serving to facilitate detection of a watermark message; separating the digital watermark orientation pattern into first frequency components and second frequency components; utilizing a programmed electronic processor or electronic processing circuitry, transforming the first color channel by steganographically embedding the first frequency components therein; and utilizing a programmed electronic processor or electronic processing circuitry, transforming the second color channel by steganographically embedding the second frequency components therein. Of course, other combinations and claims are provided too.
50 Citations
32 Claims
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1. A method comprising:
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obtaining a first color channel and a second color channel, the first color channel and the second color channel are components of a color image signal or color video signal; obtaining a digital watermark orientation pattern, the orientation pattern serving to facilitate detection of a watermark message; separating the digital watermark orientation pattern into first frequency components and second frequency components; utilizing a programmed electronic processor or electronic processing circuitry, transforming the first color channel by steganographically embedding the first frequency components therein; and utilizing a programmed electronic processor or electronic processing circuitry, transforming the second color channel by steganographically embedding the second frequency components therein. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method comprising:
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obtaining a first color channel, a second color channel and a luminance channel, the first color channel, the second color channel and the luminance channel are each components of a color image signal or color video signal; obtaining a digital watermark orientation pattern, the orientation pattern serving to facilitate detection of a watermark message; separating the digital watermark orientation pattern into first frequency components, second frequency components and third frequency components; utilizing a processor or electronic processing circuitry, transforming the first color channel by steganographically embedding the first frequency components therein; utilizing a processor or electronic processing circuitry, transforming the second color channel by steganographically embedding the second frequency components therein; and utilizing a processor or electronic processing circuitry, transforming the luminance channel by steganographically embedding the third frequency components therein. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. An apparatus comprising:
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one or more electronic processors; and instructions for execution by said one or more electronic processors, said instructions comprising instructions for; i) obtaining a first color channel and a second color channel, the first color channel and the second color channel are components of a color image signal or color video signal;
ii) obtaining a digital watermark orientation pattern, the orientation pattern serving to facilitate detection of a watermark message;
iii) separating the digital watermark orientation pattern into first frequency components and second frequency components;
iv) transforming the first color channel by steganographically embedding the first frequency components therein; and
v) transforming the second color channel by steganographically embedding the second frequency components therein. - View Dependent Claims (20, 21, 22, 23, 24)
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25. An apparatus comprising:
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electronic memory for buffering color channel information; one or more electronic processors programmed for; obtaining a first color channel, a second color channel and a luminance channel, the first color channel, the second color channel and the luminance channel are each components of a color image signal or color video signal; obtaining a digital watermark orientation pattern, the orientation pattern serving to facilitate detection of a watermark message; separating the digital watermark orientation pattern into first frequency components, second frequency components and third frequency components; transforming the first color channel by steganographically embedding the first frequency components therein; transforming the second color channel by steganographically embedding the second frequency components therein; and transforming the luminance channel by steganographically embedding the third frequency components therein. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32)
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Specification