Next Article in Journal
Efficient Implementation of 2D and 3D Sparse Deconvolutional Neural Networks with a Uniform Architecture on FPGAs
Next Article in Special Issue
A Novel Image-Restoration Method Based on High-Order Total Variation Regularization Term
Previous Article in Journal
An Intelligent Air Quality Sensing System for Open-Skin Wound Monitoring
Previous Article in Special Issue
A Low-Cost, High-Precision Method for Ripple Voltage Measurement Using a DAC and Comparators
Open AccessArticle

A n-out-of-n Sharing Digital Image Scheme by Using Color Palette

Department of CSIE, National Dong Hwa University, Hualien 97401, Taiwan
Department of Computer Science and Engineering, Xi’an University of Technology, Xi’an 710021, China
Author to whom correspondence should be addressed.
Electronics 2019, 8(7), 802;
Received: 15 April 2019 / Revised: 12 July 2019 / Accepted: 13 July 2019 / Published: 17 July 2019
(This article belongs to the Special Issue Signal Processing and Analysis of Electrical Circuit)
PDF [3791 KB, uploaded 17 July 2019]


A secret image sharing (SIS) scheme inserts a secret message into shadow images in a way that if shadow images are combined in a specific way, the secret image can be recovered. A 2-out-of-2 sharing digital image scheme (SDIS) adopts a color palette to share a digital color secret image into two shadow images, and the secret image can be recovered from two shadow images, while any one shadow image has no information about the secret image. This 2-out-of-2 SDIS may keep the shadow size small because by using a color palette, and thus has advantage of reducing storage. However, the previous works on SDIS are just 2-out-of-2 scheme and have limited functions. In this paper, we take the lead to study a general n-out-of-n SDIS which can be applied on more than two shadow. The proposed SDIS is implemented on the basis of 2-out-of-2 SDIS. Our main contribution has the higher contrast of binary meaningful shadow and the larger region in color shadows revealing cover image when compared with previous 2-out-of-2 SDISs. Meanwhile, our SDIS is resistant to colluder attack. View Full-Text
Keywords: secret image sharing; digital image; n-out-of-n scheme; color palette; colluder attack secret image sharing; digital image; n-out-of-n scheme; color palette; colluder attack

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Yang, C.-N.; Sun, Q.-D.; Liu, Y.-X.; Wu, C.-M. A n-out-of-n Sharing Digital Image Scheme by Using Color Palette. Electronics 2019, 8, 802.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Electronics EISSN 2079-9292 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top