Embedding Binary Watermark Image using DWT Coefficients

이산 웨이블릿 변환계수를 이용한 이진 워터마크 영상

  • Received : 2014.09.25
  • Accepted : 2014.10.10
  • Published : 2014.10.31


Multimedia documents can be transferred quickly and easily across the Internet, and has attracted considerable interest in multimedia security and multimedia copyright protection. This paper proposes an animage watermarking scheme embedding a binary watermark image using Discrete Wavelet Transform (DWT) coefficients. The original image is transformed to the wavelet domain and decomposed in subbands. The binary watermark image, as a sequence of bits, is embedded into the middle frequency subbands. The original image is not needed to detect the watermark image. The proposed method detected fewer watermark bits but produced an approximately 10dB higher PSNR than the max/min method.


binary watermark image;image watermarking;Discrete Wavelet Transform(DWT);Digital watermarking


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Supported by : Chosun University