学術論文誌
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The Optimal n-out-of-n Visual Secret Sharing Scheme for Gray-Scale Images
- 著者
- M. Iwamoto and H. Yamamoto
- 雑誌名
- IEICE Transactions on Fundamentals
- 巻
- E85–A
- 号
- 10
- ページ
- 2238–2247
- 出版社
- IEICE
- 発行年
- 2002
Abstract
In this paper, a method is proposed to construct an n-out-of-n visual secret sharing scheme for gray-scale images, for short an (n, n)-VSS-GS scheme, which is optimal in the sense of contrast and pixel expansion, i.e., resolution. It is shown that any (n, n)-VSS-GS scheme can be constructed based on the so- called polynomial representation of basis matrices treated in (15), (16). Furthermore, it is proved that such construction can attain the optimal (n, n)-VSS-GS scheme.