ROBUST VIDEO STEGANOGRAPHIC MODEL FOR BANKING APPLICATION BY CASCADING THE FEATURES OF SVD AND DWT.
M. Ramakrishnan · 2014
Secret communication is attained by Steganography. Imperceptibility and Robustness are the two main imperative components of Steganography. This paper presents a new combined approach to improve the imperceptibility and robustness by cascading the features of Singular Value Decomposition (SVD) and Discrete Wavelet Transform (DWT). This proposed method show the effective usage of DWT and SVD for hiding the already encrypted secret text message which adds as another layer of security. The frame separation is done and 2D-DWT is applied on desired frames, we have chosen lower resolution approximation image (LL sub band) as well as (HL, LH) detail components for SVD transformation and embedding, low frequency approximate coefficients are properly used in this method which is different from other conventional methods. Results proved that original message is extracted without any loss and minimum distortion is noticed in the reconstructed video. High capacity is accomplished by taking the video and converting into frames for embedding. The Experimental results show that the proposed method is robust against various noise addictive attacks including Salt & Pepper noise, average PSNR and NC values are also maintained as 77db and 0.999 respectively for all the frames, it is noticed that the original and disturbed frames are almost identical. Finally comparison of the proposed method with other existing methods has been carried out.