Digital signature scheme based on image diversity

In many image authentication techniques whenever the received image is declared forged there is a need to retransmit image as the techniques are not so efficient to regenerate the image from its false data received. In this paper a new authentication algorithm is presented that works on the principle of diversity i.e. same data could not get corrupted at same places at the same time. This not only provides integrity but also eliminates the need of retransmission of image and hence, avoids extra burden of the transmitter. This scheme is more suitable in areas where limited resources are available such that retransmission of data multiple times is prohibited. The effectiveness of the proposed scheme is also tested for practical applications.