1. Image steganography using dct and dwt
Authors : Nicky Saxena, Gaurav Agrawal
Pages : 742-748
DOI : http://dx.doi.org/10.21172/1.71.106
Keywords : Spatial Domain-image plane itself in this we do direct manipulation of pixels in an image, Frequency Domain-In this pixel values are transformed and on that transformed coefficients processing is applied, Least Significant Bit- includes the embedding of s Abstract :Image Steganography is the science of hiding the information for secure communication between parties like audio, video, text, images etc. It transmits data by actually hiding the existence of the message so that a hacker or any unauthorized party cannot detect the transmission of message and hence cannot try to decrypt it. For securely communicate information between parties or locations it is not an easy task, considering the possible attacks or unintentional changes that can occur during communication. Encryption is a technique which is used to protect secret information from unauthorized access. The presence of encrypted information can also entice a potential attacker to launch an attack on the secure communication. This paper based on the comparison between the paper, uses image steganography, a technology for hiding information in other information, to facilitate secure communication using DCT and DWT. By use of Steganography one can communicates with secret data as an appropriate multimedia carrier, e.g., image, audio, and video files. It is the process of embedding secret data/message in the cover image without significant changes to the cover image.
Citing this Journal Article :Nicky Saxena, Gaurav Agrawal, "Image steganography using dct and dwt", Volume 7 Issue 1 - May 2016, 742-748
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