A new lossless visible watermarking method via the use of the PNG image

Che Wei Lee*, Wen-Hsiang Tsai 

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A new lossless visible watermarking method via the use of the PNG image is proposed. The method transforms a color host image into the PNG format with an additional alpha channel plane and a visible watermark is then embedded into the color channel plane of the host image. During the embedding process, data of color pixels covered by the watermark are collected to form a data packet. The data packet is then embedded into the alpha channel plane in order to remove the visible watermark from the watermarked image later. Furthermore, pixel values in the alpha channel plane are mapped into a range near their maximum value of 255 to yield a nearly total transparent watermarked image. During the process of image recovery, the proposed method can remove the visible watermark from the watermarked image without the original watermark because all data that are needed to losslessly recover the watermarked image are embedded in the alpha channel plane. Experimental results demonstrating the effectiveness of the proposed method are also included.

Original languageEnglish
Title of host publicationProceedings of the IASTED International Conference on Artificial Intelligence and Soft Computing, ASC 2012
Pages195-199
Number of pages5
DOIs
StatePublished - 2012
EventIASTED International Conference on Artificial Intelligence and Soft Computing, ASC 2012 - Napoli, Italy
Duration: 25 Jun 201227 Jun 2012

Publication series

NameProceedings of the IASTED International Conference on Artificial Intelligence and Soft Computing, ASC 2012

Conference

ConferenceIASTED International Conference on Artificial Intelligence and Soft Computing, ASC 2012
Country/TerritoryItaly
CityNapoli
Period25/06/1227/06/12

Keywords

  • Color image
  • Information hiding
  • Lossless visible watermarking
  • Png image
  • Signal and image processing

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