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Steganographic algorithm of hiding information in sound based on Fourier transform and masking

100%

Kozieł G.

Control and Cybernetics

2011

tom Vol. 40, no 4

1231-1247

A new steganographicmethod based on Fourier transform is proposed. Data is attached in the frequency domain within the limits of the audible band. Masked frequencies are used to conceal information in order to make the changes inaudible for human ear. This approach allows for modification in the sound frequency band only, and does not require any additional modifications. It also allows for concealing information efficiently, minimizing the number of changes and gaining robustness with respect to popular sound transformations.

Digital watermarking based on error correction coding technique

75%

Niu X. , Lu Z. , Sun S.

Image Processing & Communications

2000

tom Vol. 6, no 1-2

23-28

In this paper, a method of embedding a digital watermark into an image is proposed. By taking advantage of zerotree in the rearranged DCT coeffcients for watermarking, the algorithms can extract the watermark without original image. To enhance the robustness of watermarking, the watermark information is coded by error correction coding of Hamming code in our algorithm. Experimental results show that the proposed techniques successfully survive some image processing operations and the lossy compression techniques such as Joint Photographic Experts Group (JPEG).