Information Hiding In Digital Video Using DCT, DWT and CvT

Abstract

The type of video that used in this proposed hiding a secret information technique is .AVI; the proposed technique of a data hiding to embed a secret information into video frames by using Discrete Cosine Transform (DCT), Discrete Wavelet Transform (DWT) and Curvelet Transform (CvT). An individual pixel consists of three color components (RGB), the secret information is embedded in Red (R) color channel. On the receiver side, the secret information is extracted from received video. After extracting secret information, robustness of proposed hiding a secret information technique is measured and obtained by computing the degradation of the extracted secret information by comparing it with the original secret information via calculating the Normalized cross Correlation (NC). The experiments shows the error ratio of the proposed technique is (8%) while accuracy ratio is (92%) when the Curvelet Transform (CvT) is used, but compared with Discrete Wavelet Transform (DWT) and Discrete Cosine Transform (DCT), the error rates are 11% and 14% respectively, while the accuracy ratios are (89%) and (86%) respectively. So, the experiments shows the Poisson noise gives better results than other types of noises, while the speckle noise gives worst results compared with other types of noises. The proposed technique has been established by using MATLAB R2016a programming language.

Video steganography: recent advances and challenges

“…In the future, the researchers can explore the effectiveness of other wavelet transforms other than DCT and DWT for data embedding. Reference [109] displayed the effectiveness of CvT over DCT and DWT. To the best of our knowledge, no other methods in the literature have used CvT function for embedding in transform coefficients.…”

“…The obtained results show that Bi-orthogonal wavelet filters outperformed the orthogonal filters for DWT domain-based video steganography applications. A comparative analysis study is conducted in [109] to examine the performance of DCT, DWT, and CvT ( curvelet transform) for hiding the secret data inside video in the transform domain. LSB substitution method is implemented to hide the data in the transform domain after applying the transform function.…”