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Erschienen in:
2018 | OriginalPaper | Buchkapitel
A New Data Hiding Strategy Based on Pixel-Value-Differencing Method
verfasst von : Hui-Shih Leng
Erschienen in: Advances in Intelligent Information Hiding and Multimedia Signal Processing
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Abstract
The Pixel-Value-Differencing (PVD) method is a popular irreversible data-hiding scheme proposed by Wu and Tsai (2003). The design of the interval range plays an important role in this method. It is intuitive to design the interval range using the width of the power of two, and the number of bits that can be embedded in a block of two consecutive pixels is determined based on the width of the interval range to which the difference value belongs. In 2013, Tseng and Leng broke the rules in that they designed the interval range based on a perfect square and achieved a higher payload and lower distortion. Based on Tseng and Leng’s idea, we propose a new data-hiding strategy based on the PVD method for an optimal design of the interval range.