Ruiling Zhu

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A more efficient robust watermarking algorithm based on DCT is proposed in this paper. The strength parameter of watermark in some approaches proposed is determined by experiments, we aim at establishing a mathematical model for hiding data in host image. By modifying the relationships between the selected middle-frequency coefficients and standard variance(More)
  • Shidramshetti S. Pasarad, Ravi Talawar, +8 authors Mingfu Li
  • 2015
Cheques Truncation System can be used For the rapid clearing of cheques. Cheques Truncation System of the bank transmits the electronic version of cheque pictures to drawee branches for the payment through the clearinghouse. We are blindly trusting that the arrangement is very safe and insured. However, genuine information in the cheque image may be damaged(More)
How to select the finite ridgelet transform (FRIT) coefficients which were suitable to embed watermark data was an interesting problem. Digital watermarking algorithms in FRIT domain were accomplished by modulating the transform coefficients, which represented the most energetic direction of an image. However, these coefficients which were the most suitable(More)
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