A Progressive Secret Image Sharing Scheme Based on GEMD Data Hiding

Abstract

With the development of the Internet, people spread digital information through the Internet. However, the Internet is a public channel. Avoiding digital information be tampered with to keep the security of data is the most important thing today. The main method of data hiding is to embed secret information into multimedia and then transmit it to the recipient. The stego multimedia would not attract someone and is protected from tampering during transmission. In addition to data hiding technology, this paper is combined with secret image sharing. We use Progressive Secret Image Sharing (PSIS) that the secret image is divided into multiple regions and hidden in N stego images. If the recipient wants to extract the secret image, the recipient must have a part of or all stego images to extract a similar secret image or a complete secret image. In this paper, we propose the method of secret image sharing based on GEMD data hiding. The secret image is not in sequence, but can be overlapped and divided. The experimental results present that the stego images are \( {\text{PSNR}} \ge 50{\text{dB}} \). The recipient can extract be similar or complete with stego images and judge whether stego images is tampered or not.