An Efficient Secret Image Sharing Scheme Using an Effectual Position Exchange Technique

Conference paper
Part of the Advances in Intelligent Systems and Computing book series (AISC, volume 249)


In image secret sharing scheme the specific image is distributed among a group of n participants. Each gets a shared image that has no visual relationship with the original one. The entire set or their subsets are used to reconstruct the secret image. The sharing schemes are useful for group authentication. In this paper, we proposed a novel approach to image secret sharing scheme where a secret image is transformed into an entirely new image by repositioning intensity values of each pixel using an effective position exchange technique. The transformed image undergoes a relatively less overhead negative transformation to make it more unpredictable. Finally n random numbers are generated for creating n shares in a way that their summation yields ‘1’ and they lay in some predefined interval. Each stage provides an additional level of security. The proposed method is simple and efficient and also ensures complete secrecy and reconstruction.


Shared image negative transformation and position exchange technique 


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Copyright information

© Springer International Publishing Switzerland 2014

Authors and Affiliations

  1. 1.Department of Information TechnologySt. Thomas’ College of Engineering & TechnologyKolkataIndia
  2. 2.Department of Computer Science and EngineeringSt. Thomas’ College of Engineering & TechnologyKolkataIndia

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