High Secure Video Steganography Based on Shuffling of Data on Least Significant DCT Coefficients

In this paper, a novel video steganography scheme is proposed based on random integer generation in DCT domain. The proposed technique detects the carrier frames using scene change detection. The scene change is identified by the interframe difference of the DCT coefficients. Once the carrier frame is detected the carrier frame is divided into sub-images. The DCT coefficients of the sub-images are estimated and the 8 least significant DCT coefficients are replaced by the threshold value. The threshold value depends on the confidential information to be hidden either 0 or 1. The position of the confidential information depends on the random integer generated. The confidential information is shuffled based on the randomly generated integer, which increases the security. The experimental result exemplifies that the algorithm not only provides higher security but also good video quality and can withstand against attacks.