Journal of Jishou University(Natural Sciences Edition)

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An Improved Double Color Digital Image Watermarking Algorithm Based on DWT-SVD

ZENG Linling   

  1. (College of Mathematics and Statistics,Jishou University,Jishou 416000,Hunan China)
  • Online:2017-09-25 Published:2017-11-02


For copyright protection,digital watermarking technique enables watermark data with specific meaning to be embedded into the digital media in an invisible manner.Two important properties of watermarked image-robustness and imperceptibility must be considered in watermarking algorithm research.Accordingly,we propose a watermarking algorithm by using discrete wavelet transformation and singular value decomposition in YCbCr color space.Experiment shows that this method is more robust against various geometric attacks than other methods.

Key words: Arnold transformation, Alpha blending, discrete wavelet transformation, singular value decomposition

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