Quick response (QR) codes have been widely used in applications, such as data storage
and high-speed machine reading. Anyone can gain access to the information stored in QR …

Abstract Recently, Chen and Wu propose a (n, n) multi secret image sharing (MSIS) scheme
that shares n secret images into n shared images. These n shared images can be together …

Color-black-and-white visual cryptography scheme (CBW-VCS) is a methodology that
utilizes colors to alleviate the pixel expansion problem. In a general (k, n) CBW-VCS, when k …

Processing-in-memory (PIM) and in-storage-computing (ISC) architectures have been
constructed to implement computation inside memory and near storage, respectively. While …

In halftone visual cryptography scheme (HVCS), a secret image can be embedded into
halftone shares with meaningful information of the cover images. Meaningful shares are …

The XOR-based visual cryptography (VC) is a possible methodology to solve the poor visual
quality problem without darkening the background in VC. However, investigations on XOR …

A (k, n)-conventional visual cryptography (VC) scheme is designed to share one secret and
each participant takes one share. When some common participants are involved in multiple …

This paper first introduces a (k, n)-sharing matrix S (k, n) and its generation algorithm.
Mathematical analysis is provided to show its potential for secret image sharing. Combining …

XOR-based visual cryptography scheme (XVCS) was proposed to solve the poor visual
quality problem without darkening the background in the reconstructed secret image …

In a progressive visual cryptography scheme (PVCS), the clarity of recovered images can be
enhanced by increasing the number of stacking shares. Noise-like shares are hard to …