期刊名称：International Journal of Computer Science and Information Technologies
电子版ISSN：0975-9646
出版年度：2013
卷号：4
期号：4
页码：583-589
出版社：TechScience Publications
摘要：Steganography is the art and science of concealing information into another medium so that no one apart from the intended sender and receiver can see the information. In this paper an attempt has been made for high capacity and security steganography of color images in the domain of discrete wavelet transformation. We use Discrete Wavelet Transformation (DWT) in the process of steganography so that we can clearly identify the high frequency and low frequency information of each pixel of the image. In our proposed method we applied the Haar-DWT. We have used four different types of image file formats for analysis of our proposed method. In each of the file formats 6389 bytes of message were inserted for the purpose of steganography. For the analysis of the proposed method MSE and PSNR was calculated for each of the cover and stego image and also the RGB histogram of each of the file format was analyzed. The MSE and Capacity are improved with acceptable PSNR compared to the existing algorithm.
