Adaptive angle quantization index modulation for robust image watermarking
作者： Mohsen Zareian , Ali Daneshkhah
DOI: 10.1109/GLOCOM.2012.6503224
关键词:
摘要: A robust image watermarking scheme based on angle quantization index modulation (AQIM) is proposed. The original AQIM method employs a fixed step-size, which results in poor robustness of the algorithm. In this paper, step-size adaptively selected using an exponential function. To keep watermark imperceptible and increase its robustness, low frequency components high entropy blocks are used for data hiding. analytical error probability embedding distortion derived assessed by simulations artificial signals. Simulation show that proposed has better performance comparison with conventional recently methods.
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