Secret sharing for color images

Digital data security and integrity preservation are important issues in modern communication systems. The confidentiality of the transmitted visual data over digital communication networks is usually obtained by encryption. However, the main disadvantage of the encryption frameworks arises from their dependency on the utilized key. In this thesis, we will investigate practical methodologies to solve these challenges regarding secure visual data transmission over communication channels.;Secret sharing schemes have been employed for storage and transmission of visual data. The primary motivation of this work is to propose novel secret sharing schemes for color images which can be considered as cost effective candidates for transmission of color images over communication channels. We present Secret Sharing for Visual Data (SSVD) schemes which are followed by algebraic operations to preserve the input image content. They are capable of transmission of color images over bandwidth limited communication channels.