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Watermarking in dithered halftone images with embeddable cells selection and inverse halftoning

Published: 01 June 2008 Publication History

Abstract

This work proposes a novel technique, named embeddable cells selection (ECS), for embedding flexible amounts of data in a ready-made dithered halftone image, while still achieving good quality results. The encoder embeds the secret data in the high-frequency regions with nearly the same number of black and white pixels and low pixel connections. A blind decoding technique without prior knowledge of the original dithered image but with some side information is adopted in the decoder. The inverse halftoning and the second round of halftoning are the key steps in locating the embedded information bits. Experimental results demonstrate that an objective good quality image with flexible capacity and reasonable complexity is obtained. Moreover, the correct decoding rate of 100% is maintained, and the original host halftone image can also be reconstructed in the decoder. Furthermore, by recording the embedded positions, this method can guard against distortions caused by tampering, cropping, and print-and-scan attacks.

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Published In

cover image Signal Processing
Signal Processing  Volume 88, Issue 6
June, 2008
314 pages

Publisher

Elsevier North-Holland, Inc.

United States

Publication History

Published: 01 June 2008

Author Tags

  1. Blind decoding
  2. Data hiding
  3. Embeddable cell selection
  4. Error diffusion and least-squares
  5. Halftone
  6. Inverse halftoning
  7. Ordered dither
  8. Watermarking

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  • (2019)NovelWatermarking Authentication Schemes for Binary Images Based on Dual-Pair Block Pixel PatternsFundamenta Informaticae10.5555/2362196.236220590:1-2(125-155)Online publication date: 4-Jan-2019
  • (2018)Dither matrix estimation based on pixel histograms of halftonesSignal Processing10.1016/j.sigpro.2017.11.004144:C(398-416)Online publication date: 1-Mar-2018
  • (2017)Partial reversible data hiding scheme using (7, 4) hamming codeMultimedia Tools and Applications10.1007/s11042-016-3990-176:20(21691-21706)Online publication date: 1-Oct-2017
  • (2015)Inverse color to black-and-white halftone conversion via dictionary learning and color mappingInformation Sciences: an International Journal10.1016/j.ins.2014.12.002299:C(1-19)Online publication date: 1-Apr-2015
  • (2011)Data hiding in a halftone image using hamming code (15, 11)Proceedings of the Third international conference on Intelligent information and database systems - Volume Part II10.5555/1997099.1997143(372-381)Online publication date: 20-Apr-2011

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