Multi-secret Sharing Threshold Visual Cryptography Scheme

Original VCS can only share a secret image at a time. When we want to share more secret images, we need to preserve a number of shares which increase our burden. Based on (k, n)-VCS and (k-1, k-1)-VCS, we propose a multi-secret sharing threshold VCS that a participant only preserves a share to share more than one secret and expands the scope of application.