On the Security of Reversible Data Hiding Based-on Histogram Shift

Recently, Hwang et al. (HKC) proposed a simple improvement reversible data hiding scheme based on the histogram shift. They claim that the read don´t send any additional information to the receiver in their scheme. However, it will generate an informal distribution in the histogram when the secret data is embedded into a cover image. In this paper, we will use this defect to propose a method to show that HKC scheme is impractical. In other words, any adversary is also able to trace the embedding secret data position from the stego-image´s histogram.