Image analysis – Applications
Reexamination Certificate
2005-09-13
2005-09-13
Ahmed, Samir (Department: 2623)
Image analysis
Applications
C382S232000, C380S210000, C713S176000, C348S460000
Reexamination Certificate
active
06944313
ABSTRACT:
A method of inserting a watermark in digital data (I) includes the steps of multi-resolution spectral breakdown (E1) of the digital data (I); extraction (E2) of the components of lowest frequency; choice (E3) of a subset of the components with the lowest frequency; modulation (E4) of the components of said subset in order to insert the supplementary information (S); and reverse multi-resolution spectral recomposition (E5) of the watermarked digital data (I′).
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Ahmed Samir
Bhatnagar Anand
LandOfFree
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