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Scalable Secret Sharing of Compressed Multimedia

Shreelatha Bhadravati, Pradeep K. Atrey and Majid Khabbazian

Secret Image Sharing

The (k, n) SIS method has the property that either all the shares are reconstructed completely with k shares or not reconstructed at all. This property is not suitable for certain applications which need a gradual reconstruction. The (k, n) SSIS method aims to achieve gradual reconstruction with smooth scalability. In this method, a low quality image is reconstructed with k shares and as the available shares increases to n, highest quality of the image is obtained.

The block diagram for the (k, n) SSIS is shown below

Block diagram

Below we show a demo of the method SSIS performed on various images