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I was reading this and was wondering if it can be used to do secret sharing with images.

I dont know a lot about image processing, but if the authors have given a scheme for matrices, how can be correctly applied/adapted for images ?

Where should I start ?

EDIT

Brief description of the aforementioned "secret sharing scheme" :

Take a matrix, and split it into n no. of parts(using their algorithm) which become the "shares". Now the holders of these "shares" can come together to "merge" the shares to regain the original secret(matrix). Thus effective "secret-sharing"

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Why would you not just use a symmetric cipher like AES? Regards –  Amzoti Jan 6 '13 at 6:03
    
Actually, if you go thru the link, what they are suggesting is to take a matrix, and split it into n no. of parts(using their algorithm) which become the "shares". Now the holders of these "shares" can come together to "merge" the shares to regain the original secret(matrix). Thus effective "secret-sharing" –  Wildling Jan 6 '13 at 6:07
    
Well, you could interpret the image as a $w\times h$ matrix (or $3w\times h$ or $w\times 3h$, if it is a three-channel colour image)... –  Rahul Jan 6 '13 at 6:16
    
@RahulNarain yes, this was my initial thought, and I have been googling since then and this will probably work. Thanks. –  Wildling Jan 6 '13 at 6:27

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