Hiding large amount of data using a new approach of video steganography

Steganography has become one of the most robust technique to transmit secrete or sensitive information between parties by concealing the information in some file which may appear to be of no importance to any interceptor. In this paper, we have used video file as the cover file and embedded the information in the frames where the scene has changed in the video sequence using the Least Significant Bit (LSB) replacement technique. For additional security we have randomized the pixel positions where the information bits are embedded by generating an indexed based chaotic sequence and arranging the pixel position according to the sequence. The experimental result shows that the original cover video and stego video are visually identical i.e. there is no perceptual difference between the two videos.