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Khan, Mohammad Ibrahim
- A New Audio Watermarking Method Based on Discrete Cosine Transform with a Gray Image
Abstract Views :201 |
PDF Views:111
Authors
Affiliations
1 Department of Computer Science and Engineering, Chittagong University of Engineering and Technology,Chittagong-4349, BD
2 Department of Computer Engineering and Information Technology, EUCS Lab, University of Ulsan, KR
1 Department of Computer Science and Engineering, Chittagong University of Engineering and Technology,Chittagong-4349, BD
2 Department of Computer Engineering and Information Technology, EUCS Lab, University of Ulsan, KR
Source
AIRCC's International Journal of Computer Science and Information Technology, Vol 4, No 4 (2012), Pagination: 119-128Abstract
Many effective watermarking algorithms have been proposed and implemented for digital images and digital video. However, a few algorithms have been proposed for audio watermarking. This is due to the fact that, human auditory system (HAS) is far more complex and sensitive than human visual system (HVS). In this research work, a new method of embedding image data into the audio signal and additive audio watermarking algorithm based on Discrete Cosine Transformation (DCT) domain is proposed. First, the original audio is transformed into DCT domain. The DCT coefficients are divided into a fixed number of subsections and the energy of each subsection is calculated. Next, watermark is generated from image by image processing algorithm. Watermarks are then embedded into selected peaks of highest energy subsection. Experimental results demonstrate that the watermark is inaudible and this algorithm is robust to common operations of digital audio signal processing, such as noise addition, re-sampling, requantization and so on. To evaluate the performance of the proposed audio watermarking method, subjective and objective quality tests including Bit Error Rate (BER) and Signal to Noise ratio (SNR) are conducted.Keywords
Audio Watermarking, Discrete Cosine Transformation, Arnold Transformation, BER, SNR.- A New DCT-Based Watermarking Method for Copyright Protection of Digital Audio
Abstract Views :235 |
PDF Views:128
Authors
Affiliations
1 Department of CSE, Chittagong University of Engineering and Technology, BD
1 Department of CSE, Chittagong University of Engineering and Technology, BD