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A novel multi stego-image based data hiding method for gray scale image

Year : 2019

Publisher : Universiti Putra Malaysia PressTower 2, UPM-MDTC Technology CentreSerdang, Selangor43400

Source Title : Pertanika Journal of Science and Technology

Document Type :

Abstract

In this paper, we present a novel multi stego-image based data hiding method using the principle of the modified least significant bit (LSB) matching to improve the embedding capacity (EC) as well as image quality. Initially, each original pixel produces four new pixels. The secret data is hidden in all the four produced pixels. Then the pixels are readjusted to improve the quality of the stego-images. There are four separate stego-images developed from the four different readjusted pixels. Each stego-image hides one bit per pixel. The average peak signal-to-noise ratios (PSNR) for the stego-images are 36.06 dB, 37.88 dB, 39.60 dB and 41.00 dB respectively. Furthermore, the proposed method successfully withstand against RS-steganalysis.