| 摘要 |
The invention concerns a method of determining a segmentation into distinct regions of a set of coefficients representing at least part of an image (IM) in order to insert a set of watermarking signals with a predetermined cardinal, characterised in that it includes the steps of: generating (E2) a set of acceptable segmentations, calculating (E3), for each acceptable segmentation, a probability of error on the detection of the watermarking signals inserted in said each acceptable segmentation, and selecting (E3) a segmentation in the set of acceptable segmentations, by minimising, on all the acceptable segmentations, the probability of error subject to a constraint on the cardinal of the regions of the selected segmentation, with respect to the cardinal (C) of said set of watermarking signals. <IMAGE> |
