Dual Image Based Reversible Data Hiding Scheme Using Weighted Matrix

Biswapati Jana

《International Journal of Electronics and Information Engineering》 5卷1期 (2016/09) Pp. 6-20

https://doi.org/10.6636/IJEIE.201609.5(1).02

並列摘要

In this paper, we introduce dual image based reversible data hiding scheme using weighted matrix. First, we partition the original image into (3 x 3) pixel blocks. Then we perform modulo sum of entry wise multiplication with a shared secret weighted matrix. We then calculate the difference between modulo sum value and secret message. According to the sign of this difference, we increase or decrease one at the corresponding pixel of image block and keep the position value by addition/subtraction with the original pixel. Repeat the same nine times to embed thirty six bits secret data within each pixel block. Finally, we distribute the original and stego pixel among dual image based on a shared secret key. At the receiver end, we successfully extract secret message using shared secret weighted matrix and shared secret key. Also we recover cover image without any distortion from dual stego image as because the original pixels are not effected during data embedding which assure reversibility. The proposed scheme provides average data embedding capacity 1:98 bits per pixel (bpp) with good visual quality measured by peak signal to noise ratio (PSNR) which are grater than 39 dB. We compare our scheme with other state-of-the-art methods and obtain reasonably better performance in terms of data embedding capacity.

並列關鍵字

Dual Image ； Reversible Data Hiding ； RS Analysis ； Steganographic Attack ； Weighted Matrix