A Secure Text (Missile Co-ordinate) Transmission Using Digital Watermarking

Jagtap. D. V, M. D. Patil

Abstract: Now days; internet resulted in an considerable growth in multimedia applications. The explosive advancement of internet has made it easier to send the data/image accurate and faster to the destination. Besides this; it is easier to modify and misuse the valuable information through hacking at the same time. Digital watermarking is one of the proposed solutions for copyright protection of multimedia data. A watermark is a technique; image or text is impressed onto the another Image; which provides evidence of its authenticity. Here an invisible watermarking technique (least significant bit) and a visible watermarking technique is implemented. This paper presents the general overview of image and text watermarking and different security issues such as ambiguity attack; cryptographic attacks etc. Various attacks such as ambiguity attack; cryptographic attacks etc. are also performed on watermarked images and their impact on quality of images is supplementary of paper. In paper; Image Watermarking using Least Significant Bit (LSB) algorithm has been used for embedding the message/ into the image. This work has been implemented through MATLAB.

Keywords: Watermarking, Least Significant Bit LSB, JPEG Joint Photographic Experts GroupMATLAB, MSB