Mritha Ramalingam ¹, Nor Ashidi Mat Isa ¹

Affiliations
1 Imaging and Intelligent System Research Team (ISRT) , School of Electrical and Electronic Engineering, Engineering Campus, Universiti Sains Malaysia, Nibong Tebal 14300, Penang, MY

Abstract

This paper proposes a video steganography algorithm based on Haar Integer Wavelet Transforms (IWT) and Least Significant Bits (LSB) substitution for data hiding and extraction in Red Green Blue (RGB) components of the video files. In this approach, the cover-video is divided into RGB frames and the text in binary form is embedded into the LSBs of IWT coefficients. The embedded text is extracted from stego-video using the reverse process of data hiding. The proposed system was implemented using Audio Video Interleave (AVI) files. The experimental results prove that the proposed system has shown imperceptible modifications in AVI videos that lead to high security and an eavesdropper's inability to detect hidden data. The proposed system is simple and therefore can be used to transfer highly confidential data like military secrets, hospital reports and other data.

Keywords

Data Hiding, Haar Integer Wavelet Transform, Imperceptibility, Security, Video Steganography

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Mritha Ramalingam ¹, Nor Ashidi Mat Isa ¹

Affiliations
1 Imaging and Intelligent System Research Team (ISRT), School of Electrical and Electronic Engineering, Engineering Campus, Universiti Sains Malaysia, Nibong Tebal 14300, Penang, MY

Abstract

Nowadays the growth of information technologies makes it convenient for people to transmit mass data like confidential biomedical records, banking or financial data through Internet. However, it also provides vast opportunities for hackers to filch valuable information. Therefore, security becomes an important issue. Steganography is a recently developed technique in the data security field and has received significant attention from both industry and academia. Digital data hiding methods can hide message in multimedia files for secret communications. This paper presents a secure data hiding technique for video images using random key encoding function. Secret data are embedded into the random Red Green Blue (RGB) pixel values of the cover-video images using an encryption key. The cover-video images are pre-processed to prevent overflow/underflow. Experimental results indicate that the extracted data are without any errors. The performance of the proposed scheme is proved in terms of security and (Peak signal noise ratio) PSNR values.

Keywords

Data Hiding, Random Key, Security, Video Steganography.

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