Using redundant wavelet transform in video watermarking

2005 ◽  
Author(s):  
Yonghui Wang ◽  
Suxia Cui
Keyword(s):  
Wavelet Transform ◽  
Video Watermarking ◽  
Redundant Wavelet Transform

A fast video watermarking algorithm using dual tree complex wavelet transform

2018 ◽  
Vol 78 (12) ◽  
pp. 16159-16175 ◽  
Author(s):  
Reza Esfahani ◽  
Mohammad Ali Akhaee ◽  
Zynolabedin Norouzi
Keyword(s):  
Wavelet Transform ◽  
Video Watermarking ◽  
Complex Wavelet Transform ◽  
Complex Wavelet

Image reconstruction of compressed sensing MRI using graph-based redundant wavelet transform

2016 ◽  
Vol 27 ◽  
pp. 93-104 ◽  
Author(s):  
Zongying Lai ◽  
Xiaobo Qu ◽  
Yunsong Liu ◽  
Di Guo ◽  
Jing Ye ◽  
...  
Keyword(s):  
Wavelet Transform ◽  
Image Reconstruction ◽  
Compressed Sensing ◽  
Redundant Wavelet Transform

A secure communication approach in OFDM using optimized interesting region-based video watermarking

2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Amir M.U. Wagdarikar ◽  
Ranjan K. Senapati
Keyword(s):  
Wavelet Transform ◽  
Secure Communication ◽  
Orthogonal Frequency Division Multiplexing ◽  
Random Noise ◽  
Video Watermarking ◽  
Secret Message ◽  
Ofdm System ◽  
Content Type ◽  
Minimum Mean Squared Error ◽  
Communication Approach

Purpose The technique for hiding confidential data in specific digital media by enhancing the graphical contents is known as watermarking. The dissemination of information over a secure channel is essential for multimedia applications. The purpose of this study is to develop a secure communication approach for OFDM system. Design/methodology/approach This paper exploits a secure communication in the orthogonal frequency division multiplexing (OFDM) system using wavelet-based video watermarking technique. In this work, the Chronological-MS algorithm is used for securing the data communication in the OFDM system. Here, the secret message is embedded in video frames using wavelet transform for hiding sensitive information and the hidden information is transmitted over the OFDM system. The Chronological-MS algorithm is used for selecting the optimal regions in the video for embedding secret message. In embedding phase, wavelet coefficients are obtained by applying wavelet transform on the frame for embedding the secret message. Meanwhile, in extraction phase, the inverse wavelet transform is applied to extract the secret message. Findings Considering number of frames, the maximum Peak signal-to-noise ratio (PSNR) value is attained by proposed Wavelet + Chronological MS method for Video 2 with value 73.643 dB, respectively. Meanwhile, the minimum mean squared error (MSE) attained by the proposed Wavelet + Chronological MS method is when considering number of frames with MSE values as 0.001 for both Videos 1 and 2. The minimum bit error rate (BER) value is attained by the proposed method with value 0.00009 considering random noise with Video 1. Thus, the proposed Wavelet + Chronological MS have shown better results than the existing techniques. Originality/value This work proposes a wavelet-based watermarking method using Chronological-MS, for initiating secured communication over an OFDM. One of the main advantages of wavelets is that they offer a simultaneous localization in time and frequency domain. Hence, the proposed method offers the highly secured data transmission over the OFDM.

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