Digital Video Watermarking Methods Using DCT and SVD

Meaad M Salih,Manar A Al-Abaji,Eman F Ahmed

doi:10.33899/edusj.2020.164378

Abstract

In this search, two methods were used to include the watermark in the video. The first method was based on DCT (Discrete Cosine Transform), the second method was based on an algorithm SVD (Singular Value Decomposition) for the purpose of converting video to frequency domain. The process of embedding the watermark in both methods was done after the original video was divided into a set of frames, and one frame was divided into a block of 8 x 8 and the DCT on each block when using the first method and the SVD algorithm when using the second method. And then include the Bit Binary for the watermark inside the center of the cluster. Random selection of video frames and rows of watermark images has been adopted in both ways. The performance of the two methods was assessed using the experimental tests PSNR, MSE and NC.The experimental results show that both methods have achieved a good understanding and high resistance against various attacks, adopted Matlab 2013a language.

Highlights

Over the past years, there has been rapid progress in computers and in the Internet, where multimedia information such as images, video, text and audio has become available to network users and with a simple background, any information can be copied from the network
In spatial-domain is the process of embedding a watermark that is done directly by changing its pixel, while in frequency-domain the changing is done on the coefficients of video frames after transformed it according to the method of embedding
U.Shyamala Devi1,et al [11] suggested video watermarking is performed by using a hybrid DWT and SVD, The quality of the original frame and the embedded frame is estimated by means of Mean squared error (MSE) and PSNR

Summary

1.Introduction

There has been rapid progress in computers and in the Internet, where multimedia information such as images, video, text and audio has become available to network users and with a simple background, any information can be copied from the network. In spatial-domain is the process of embedding a watermark that is done directly by changing its pixel, while in frequency-domain the changing is done on the coefficients of video frames after transformed it according to the method of embedding. Tahani Al-Khatib and Ali Al-Haj [8] suggested two mathematical transforms DWT and SVD Both methods were combined to exploit their attractive features , Experimental results demonstrated the blindness and robustness of our proposed method as it successfully extracted the watermark from each frame without using the original video. U.Shyamala Devi1,et al [11] suggested video watermarking is performed by using a hybrid DWT and SVD , The quality of the original frame and the embedded frame is estimated by means of MSE and PSNR. The mathematical definition of 2-dimensional inverse DCT performed on an 8 × 8 block of pixels is given in following equation [11]

The Proposed Method

7.Results & discussion

Method

8.Conclusion