ALPHA BLENDING IMAGE STEGANOGRAPHY USING DISCRETE WAVELET TRANSFORM AND SINGULAR VALUE DECOMPOSITION
Saleem S Tevaramani1,2, Ravi J3
1Research Scholar, Dept of ECE, Global Academy of Technology Bangalore 560098
2Assistant professor, Dept of ECE, KSIT Bangalore 560109
3Professor, Dept of ECE, Global Academy of Technology Bangalore 560098
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Steganography is the methodology to conceal confidential facts and secure information during communication over a network. An image steganography scheme is proposed to conceal one color image deep down the other color image to avoid the visibility of the existence of information. The proposed technique is attributed to the 2D-Discrete Wavelet Transformation (DWT) and Singular Value Decomposition (SVD) schemes in conjunction with the alpha blending technique. The Peak Signal to Noise Ratio (PSNR) of the stego images generated by the designed algorithm is significant. The proposed model is suitable for real-time applications, provides elevated concealing capacity, and proves the protected communication and confidentiality of the Payload Image (PI).
Keywords: Cover Image, Payload Image, DWT, SVD, Steganography, PSNR