| Paper title: |
Image Hiding Using Magnitude Modulation on the DCT Coefficients |
| Published in: | Issue 2, (Vol. 4) / 2010 |
| Publishing date: | 2010-04-30 |
| Pages: | 9-14 |
| Author(s): | AL - MOMEN M. A. Saad, GEORGE E. Loay |
| Abstract. | In this paper, we introduce a DCT based steganographic method for gray scale images. The embedding approach is designed to reach efficient tradeoff among the three conflicting goals; maximizing the amount of hidden message, minimizing distortion between the cover image and stego-image,and maximizing the robustness of embedding. The main idea of the method is to create a safe embedding area in the middle and high frequency region of the DCT domain using a magnitude modulation technique. The magnitude modulation is applied using uniform quantization with magnitude Adder/Subtractor modules. The conducted test results indicated that the proposed method satisfy high capacity, high preservation of perceptual and statistical properties of the stego-image and also it is robust, to some extents against several levels of JPEG compression. |
| Keywords: | Steganography, Information Hiding, DCT. |
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