Abstract: Steganography is the way of hiding the information in a multimedia. So no one other than the creator and the receiver can identify the existence of the message. Even though there are so many image steganography exist, most of them are not adapted to the amount of secret data that to be embedded. In this paper, we are presenting a method which dynamically selects the region for embedding the data based on its size. We use a selection method to find the region for embedding and in that region, we embed the message using the LSBMR method. Regions may be a single pixel or group of pixels. Regions are scattered in different locations of the image and thus it achieves high security.

Keywords: Substitution Encryption Method, Steganography, LSB, LSBM, LSBMR, Steganalysis