In this paper, a data hiding algorithm based on PLHaar transform is proposed. The PLHaar transform maps an n-bit integer to another n-bit integer, and it guarantees no underflow/overflow to occur. Secret information is embedded into the LSB's of the PLHaar transform coefficients. Although the proposed algorithm has a slight decline in the quality of the stego audio compared with the algorithm based on Haar transform, it can recover the embedded secret information correctly without any additional operation.
Data Hiding for Audio Based on Piecewise Linear Haar Transform
2008 Congress on Image and Signal Processing ; 5 ; 688-691
2008-05-01
441193 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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