[WM]: PIVA Watermarking: Cropping

["xxx" <hermannib@hotmail.com>]

Hi watermarkers, I've implemented the Piva et al watermarking algorhitm : 'DCT based watermarking without resorting to the uncorrupted original = image' but when i test it after cropping the watermarked
image it seems = to don't work... in the detection response there's no peak where the = watermark is placed...  thank you all best
regards  Gianluca



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