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An Efficient Lossless Modulus Function Based Data Hiding Method

  • Nadeem Akhtar
Conference paper
Part of the Smart Innovation, Systems and Technologies book series (SIST, volume 44)

Abstract

Data hiding methods are useful for secure communication over the internet. Important data is hidden in cover data that is used as decoy. A lossless data hiding method is judged by the maximum size of secret data that can be hidden without distortion and similarity between the original cover image and stego image. In this work, module based least significant bit substitution methods are studied and a new enhancement is proposed to improve the quality of stego image. The new method divides the cover and secret images in several blocks and compressed secret block is hidden into corresponding cover block using modulo operation. The extra data is stored in the free space that is generated after compression. The quality of stego image in proposed method is better than that of existing methods that hides the secret data using modulo operation.

Keywords

Data hiding Lossless Modulus function Block processing Compression 

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Copyright information

© Springer India 2016

Authors and Affiliations

  1. 1.Department of Computer EngineeringAligarh Muslim UniversityAligarhIndia

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