Abstract: A compressible(r,n) threshold secret image sharing scheme is proposed which can overcome the shortcomings of VSS(Visual secret sharing) scheme,based on Shamir's threshold secret scheme.The size of each shadow image is 1/r times of the secret image.The restore image is the same as the secret one when the value of all pixels is smaller than 250.Then the authors improved it and obtained a lossless secret image shring scheme when the pixels' value is bigger than 250.
Publication Year: 2006
Publication Date: 2006-01-01
Language: en
Type: article
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