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Generalized PVO‐based dynamic block reversible data hiding for secure transmission using firefly algorithm

Abbasi, Rashid and Faseeh Qureshi, Nawab Muhammad and Hassan, Haseeb and Saba, Tanzila and Rehman, Amjad and Luo, Bin and Bashir, Ali Kashif (2019) Generalized PVO‐based dynamic block reversible data hiding for secure transmission using firefly algorithm. Transactions on Emerging Telecommunications Technologies. ISSN 2161-3915

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Abstract

In this paper, we proposed a novel generalized pixel value ordering–based reversible data hiding using firefly algorithm (GPVOFA). The sequence of minimum and maximum number pixels value has been used to embed the secret data while prediction and modification are held on minimum, and the maximum number of pixel blocks is used to embed the secret data into multiple bits. The host image is divided into the size of noncoinciding dynamic blocks on the basis of firefly quadtree partition, whereas rough blocks are divided into a larger size; moreover, providing more embedding capacity used small flat blocks size and optimal location in the block to write the information. Our proposed method becomes able to embed large data into a host image with low distortion. The rich experimental results are better, as compared with related preceding arts.

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