Abstract
Steganography is the capability to embed important data in a cover media without alarming the observer that data is embedded. There are many methods which are used to carry secret data, mostly are image and audio. In this paper a new video steganography concealing a secret video in a cover video taking the technique of steganography to a new stage. The secret video is encoded using Set Partitioning in Hierarchical Trees (SPIHT) using bi-orthogonal decimated wavelet transform, the data of the secret video is embedded in the decimated wavelet domain of the cover media, in the three bands that have high frequency content, by replacing the cover coefficients of the wavelet domain with the encoded secret coefficients. The process is applied on each frame of the secret and cover videos producing an imperceptible and robust stego-video. Image quality metrics are utilized to assess the performance of the algorithm. Experimental results show that the method produces a high video resolution using various standard video sequences and other statistical assessment. Proposed algorithm does not only apply on video but on still images as well, a collection of experiments are also applied on various content images and compared with previous work in terms of image metrics and statistics.
