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A Robust Watermarking Algorithm Based on DCT

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Year: 2011
Present: پوستر
COI code: ISCEE14_227
Paper Language: English

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Authors A Robust Watermarking Algorithm Based on DCT

  Sayed Vahab al-din Makki - Razi University of Kermanshah
  Saeed Javadzadeh - Razi University of Kermanshah
  Pejman Shahhosseini - Razi University of Kermanshah


Robustness is difficult to resolve in digital watermarking research, and contradicts its stealthiness. So the key of designing robust digital watermarking is selecting watermark embedding positions. Around these problems, we study the robust digital watermarking algorithm based on DCT. By cosine transform, image smoothing based on PDE, and morphology operators (dilation and erosion), we obtain the relative low-frequency regions with small changing which can not be detected easily by human eyes, and then get the embedding positions. The watermark embedded in these positions has a proper consideration on both robustness and invisibility of the watermark. Experiments show that this algorithm is robust to JPEG compression, sharpening, salt and pepper noise, gama correction, a number of regular geometric attacks and other image processing operations


Watermarking- Discrete cosine transform- Robustness

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COI code: ISCEE14_227

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Makki, Sayed Vahab al-din; Saeed Javadzadeh & Pejman Shahhosseini, 2011, A Robust Watermarking Algorithm Based on DCT, 14th Iranian Student Conference on Electrical Engineering, كرمانشاه, دانشگاه كرمانشاه, سازمان علمي دانشجويي مهندسي برق كشور, the text, wherever referred to or an achievement of this article is mentioned, after mentioning the article, inside the parental, the following specifications are written.
First Time: (Makki, Sayed Vahab al-din; Saeed Javadzadeh & Pejman Shahhosseini, 2011)
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The University/Research Center Information:
Type: state university
Paper No.: 7789
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