On the design of a two-decoding-option image secret sharing scheme

被引：0
作者：
Tzung-Her Chen
Kai-Siang Lin
Chih-Hung Lin
机构：
[1] National Chiayi University,Department of Computer Science and Information Engineering
[2] National Chiayi University,Graduate Institute of Mathematics and Science Education
来源：
Multimedia Tools and Applications | 2018年 / 77卷
关键词：
Visual cryptography; Image secret sharing; Polynomial-based secret sharing; Lagrange interpolation; Random grids;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
In an image secret sharing scheme (ISSS), two main categories are discussed. One is the polynomial-style image secret sharing scheme (PISSS), and the other is the visual secret sharing (VSS). It is interesting to combine the main properties of these two schemes. When the encoded secret images are received, we can decode them by combining these two schemes’ properties, utilizing the VSS property to seek the secret immediately by human visual system (HVS) and the PISSS property to recover the secret perfectly with a decoding machine. This paper combines PISSS and random grids-based VSS to remove all the drawbacks existing in the previous works including 1) distortion by compressing a secret image, 2) non-perfect reconstructed image, 3) distortion of pixel expansion, and 4) size-reduced halftone image. The experimental results demonstrate the proposed scheme does work well.
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页码：7865 / 7881
页数：16
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