Secret Sharing Using Meaningful Images
Hao-Kuan Tso · Journal of Advanced Management Science · 2013
In recent years, image sharing method has attracted much attention for protecting the security of secret images. Pixel expansion, meaningless sharing, and bad recovering quality are the important issues that need to be improved. The paper proposes a new image sharing method to remove the above problems. First a secret image is decomposed and encoded into n encoded images. Then the encoded images are embedded into the cover images to construct the meaningful sharing images. The size of the sharing images is the same with that of the secret image. When the sharing images are collected more, the recovered image is more and more clear. After collecting all sharing images, the secret image can be completely recovered without distortion. Experimental results show the feasibility of the proposed method.