The safeguarding of digitized data against unwanted access and modification has become
an issue of utmost importance as a direct result of the rapid development of network …

In reversible image secret sharing (RISS), the cover image can be recovered to some
degree, and a share can be comprehensible rather than noise-like. Reversible cover images …

Electronic medical records (EMRs) are extremely important for patients' treatment, doctors'
diagnoses, and medical technology development. In recent years, the distributed healthcare …

Because of the importance of digital images and their extensive application to digital
watermarking, block chain, access control, identity authentication, distributive storage in the …

Classic secret image sharing (SIS) including polynomial-based SIS, visual secret sharing
(VSS), linear congruence (LC)-based SIS and so on, generally has the shortcoming of “all-or …

In this paper, a novel visual secret sharing (VSS) scheme based on QR code (VSSQR) with
(k; n) threshold is investigated. Our VSSQR exploits the error correction mechanism in the …

Recently, the increasing development of social networks has brought about many privacy-
related issues. Because users (participants) have different privacy sharing behaviors when …

Visual cryptography scheme (VCS) serves as an effective tool in image security. Size-
invariant VCS (SI-VCS) can solve the pixel expansion problem in traditional VCS. On the …

Two-in-one image secret sharing (ISS) with more decoding options has more applicable
scenarios than that with only one decoding option. Conventional two-in-one ISS methods …

Steganography is to hide secret information in a normal cover, so that the secret information
cannot be detected. With the rapid development of steganography, it's more and more …