Proposed Watermarking Technique to Protect Image Using Genetic Algorithm

Abstract

This paper presents a proposed watermarking technique used forprotecting images from tampering by the attackers and other third parties.This technique is consisting of three stages: pattern generation, watermarkembedding and watermarking extracting. In proposed work, two patterns(primary and secondary) are generated from some features of the imagethat used as a watermark, then applying a genetic algorithm to getrandom, unique and robust patterns, the primary pattern will be embeddedin the main diagonal of the cover image. In addition to generate andembed the secondary pattern in the secondary diagonal of the coverimage, the purpose of secondary pattern is to ensure a secure connectionbetween the sender and the receiver. When the sender sends the image,the recipient at first extract the secondary pattern, if this pattern ismatched with original embedded one, this mean the image are kept fromattackers and the receiver can extract the primary pattern, and, if thesecondary pattern not matched, the recipient tells the sender to resend theimage again. As a result the proposed technique gives good results whenapplied on different cover images, since the embedded watermark isimperceptible and unique enough to detect the tamper.