Method for inserting binary messages in a digital image
First Claim
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1. A method for inserting at least one binary code in a digital image comprising converting the code into a deformation of contours of objects in the image, the deformation of contours comprising an alteration of shape of contours of objects in the image, including the steps of:
- detecting contours of objects in an original image;
isolating the contours from the rest of the image;
calculating Fourier descriptors of the contours;
modifying the Fourier descriptors of these contours according to the binary code to be inserted in the image; and
rebuilding the image while taking the new contours into account.
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Abstract
A method and a system for inserting at least one binary code in a digital image, including converting the code into a modification of contours of objects in the image.
18 Citations
10 Claims
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1. A method for inserting at least one binary code in a digital image comprising converting the code into a deformation of contours of objects in the image, the deformation of contours comprising an alteration of shape of contours of objects in the image, including the steps of:
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detecting contours of objects in an original image; isolating the contours from the rest of the image; calculating Fourier descriptors of the contours; modifying the Fourier descriptors of these contours according to the binary code to be inserted in the image; and rebuilding the image while taking the new contours into account. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification