Research Article
Improved Secret Image Sharing Scheme in Embedding Capacity without Underflow and Overflow
Table 4
The difference range for gray scale covers and binary scale covers.
| Schemes | Embedding method | Gray scale covers | Binary covers |
| Lin and Chan’s scheme [14] | Quantification | [−6, 6] | — |
| The proposed scheme | PMM | [−3, 3] | [−3, 3] |
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