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ICETTR-2013
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Paper Title : Image Steganography using DCT-DST, Haar-DST, Walsh-DST, Hartley-DST Hybrid Wavelet Transforms
Author Name : H. B. Kekre, Sudeep D. Thepade, Ratnesh N. Chaturvedi
Abstract : Steganography is the process of hiding a secret message within a larger cover image in such a way that no one can know the presence of the hidden message in it. The purpose of Steganography is to maintain secret communication between two parties. Steganography is a science for invisible communication and play vital role on the network security. To improve the embedding capacity as well as to have minimum distortion to carrier media, the paper proposed a method of hiding secret data into the transformed cover image. In the proposed system a block based information hiding scheme is developed using DCT-DST, Haar-DST, Walsh-DST, Hartley-DST Hybrid Wavelet Transforms for providing 62.5% of the embedding capacity. The Experimental results show that, the stego-image is visually indistinguishable from the original cover-image obtained in the proposed method. The paper compares block based information hiding schemes that hide secret information into DCT-DST, Haar-DST, Walsh-DST, Hartley-DST Hybrid Wavelet Transforms. Our experimental results show that use of DCT-DST hybrid wavelet transform (HWT) for image steganography achieves much better results as compared to Haar-DST, Walsh-DST, Hartley-DST Hybrid Wavelet Transforms.
Keywords : Steganography, Information hiding, Transforms, Hybrid Wavelet Transform.
Cite this article : H. B. Kekre, Sudeep D. Thepade, Ratnesh N. Chaturvedi " Image Steganography using DCT-DST, Haar-DST, Walsh-DST, Hartley-DST Hybrid Wavelet Transforms " ,ICETTR-2013 ,Page No : 42-46.