Analysis and design of visual secret sharing scheme for gray image
Existing gray visual secret sharing (GVSS) convert the original image into black-white binary image for processing, which causes the pixel information loss problem. For this purpose, a kind of GVSS based on gray superposition was proposed. For each gray-scale pixel, the corresponding encoding matrix...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
POSTS&TELECOM PRESS Co., LTD
2020-08-01
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| Series: | 网络与信息安全学报 |
| Subjects: | |
| Online Access: | http://www.infocomm-journal.com/cjnis/CN/10.11959/j.issn.2096-109x.2020049 |