Recently, the data hiding method based on the high embedding capacity by using improved EMD method was proposed by Kuo et al.[6]. They claimed that their scheme can not only hide a great deal of secret data but also keep high safety and good image quality. However, in their scheme, the sender and the receiver must share the synchronous random secret seed before they transmit the stego-image each other. Otherwise, they can not recover the correct secret information from the stego-image. In this paper we propose an improved scheme based on EMD and LSB matching method to overcome the above problem, in other words, the sender does not share the synchronous random secret seed the receiver before the stego-image is transmitted. Observing the experimental results, they show that our proposed scheme acquires high embedding capacity and acceptable stego-image quality.
展开▼
