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Deleepkumar, Sreedhi
- Dynamic Collage Steganography on Images
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Source
International Journal of Innovative Research and Development, Vol 4, No 3 (2015), Pagination:Abstract
Collage steganography, a type of steganographic method, introduced to hide the secret message. This paper presents a new generalized collage steganography, an augmentation of collage steganography, to improve the capacity problem since the limitation of the traditional method is capacity. The secret messages such as text, file, pdf, etc. are converted into a certain bit format and to an object image. Then it is appended into a cover image. So that the other persons will not notice that such data is there. This is the major distinction of this method with the other method of hidden exchange. This file is transferred from sender to receiver in a proper networking channel by using the mail system. A proper cover image is chosen based on an object image. The selected object image and the rotation, translation and scaling factors in the affine transformation are used to append the object image into the cover image. The information is retrieved by using the dynamic method, the sender can encrypt the message and on the other side, the receiver decrypts it. Several steganographic image examples are illustrated. In this paper one such method is shown with high efficiency.