Dual Wavelet Transform in Color Image Steganography Method

Steganography is the Art and Science of hiding the information and remarkable cover media. So, as not to arouse on Eaviesdropper´s suspicion. In this paper, secret image is hide into two different domains like as IWT (Integer Wavelet Transform) and DWT (Discrete Wavelet Transform). The cover image and secret image co-efficient values are embedded by 512*512 using fusion process techniques. We applied various combinations of DWT and IWT on both images and obtained a good quality stego images. The both domain gives more secure with secret key and certain robustness of our algorithm. ThisDual Wavelet Transform Used in Color Image Steganography Method(DWTSM)model provides high capacity and security. This proposed algorithm is tested with image quality parameters and compared to other algorithms. The experimental Results show that dual based approach achieved high capacity and high security of our system and also improves the performance of steganography system. The proposed algorithm achieved high PSNR ratio and other parameter values achieved the optimal solution and this method compared to other combination of transform.