Novel robust watermarking technique in dithering halftone images

  title={Novel robust watermarking technique in dithering halftone images},
  author={Soo-Chang Pei and Jing-Ming Guo and Hua Lee},
  journal={IEEE Signal Processing Letters},
In this letter, we present a novel robust method for embedding watermarks into dithered halftone images. The method is named paired sub-image matching ordered dithering (PSMOD), of which the decoder is provided with a priori information of the original watermark. The method utilizes the bit and sub-subimage interleaving preprocesses. The experiments show that the technique is sufficiently robust to guard against the cropping, tampering, and printed-and-scanned degradation processes, in either B… CONTINUE READING
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