THERMAL IMAGE STEGANOGRAPHY ON MULTIMEDIA DATA USING PIXEL VALUE DIFFERENCING ALGORITHM

ELECTRONICS AND COMMUNICATION ENGINEERING (IMAGE PROCESSING)

In this research, the Pixel Value Differencing (PVD) algorithm is implemented and analyzed in multimedia content and verified for the best possibility to hide the secret data or the payload in a thermal image, without spoiling the essence of maintaining the innocence of the original file and providing no clue of the existence of the data in it. Based on the range and width the PVD is processed to provide large capacity and high imperceptibility. In this paper a new approach of pixel wise analysis is performed for steganographic purpose only on the low intensity colored pixel, and are fused with the multimedia contents like Text, Image, Audio and Video. The Steganography on thermal images that are fused with the multimedia content is found to provide better image clarity with high capacity; this in turn depends on the cover image used which is carefully done; further adequate theoretical analysis is also presented.

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