A multiple blind watermark algorithm based on spatial and wavelet domain

2008 ◽  
Author(s):  
Quan Liu ◽  
Yong Su
Keyword(s):  
Wavelet Domain ◽  
Watermark Algorithm

scholarly journals Research into Digital Watermark Algorithm Based on Wavelet Domain

2012 ◽  
Vol 6-7 ◽  
pp. 525-529
Author(s):  
Guang Xue Chen ◽  
Bao Lin Tang ◽  
Qi Feng Chen ◽  
Jing Lei Tai
Keyword(s):  
Spatial Frequency ◽  
Multiple Scales ◽  
Digital Watermark ◽  
Transform Domain ◽  
Wavelet Domain ◽  
Fusion Technology ◽  
Temporal Domain ◽  
Watermark Embedding ◽  
Digital Fingerprint ◽  
Watermark Algorithm

In this paper, the key research was focused on the algorithm based on wavelet domain after analyzing and comparing several watermark algorithms. Disperse Wave Transform(DWT) watermark and Disperse Cosine Transform(DCT) watermark are both belong to transform domain technology, and they have more robustness than spatial-temporal domain technology, and DWT is superior to DCT. DWT can use the spatial-frequency characteristics of Human Visual System, and Mosaic will not appear in reconstruct image. DWT also can use image fusion technology to disperse watermark into multiple scales of carrier data, and got more robustness. In this paper, watermark embedding based on wavelet domain in which raster data are carrier was performed, then extracting and detecting watermark were done. Experiment results show that digital watermark based on wavelet domain will get better invisibility and robustness, and can be used in following the data by digital fingerprint.

Algorithm of Digital Watermark Based on Wavelet

2013 ◽  
Vol 756-759 ◽  
pp. 3298-3302
Author(s):  
Si Yu Lai ◽  
Juan Wang
Keyword(s):  
Wavelet Decomposition ◽  
Digital Watermark ◽  
Source Image ◽  
Wavelet Domain ◽  
Visual Model ◽  
Multi Level ◽  
Embedded Image ◽  
Watermark Algorithm ◽  
Human Visual Model ◽  
Traditional Image

Analyze a human visual model based wavelet domain digital watermark algorithm and improved it. First conduct multi-level wavelet decomposition on original image and modify medium frequency coefficient, and then adapt the algorithm to embed the watermark into the source image. The experiment shows that the watermark embedded image enjoys better imperceptibility and robustness to JPEG compression, add gaussian noise, contrast enhancement e.t. traditional image processing operations.

An Audio Watermark Algorithm in Wavelet Domain Based on SVM

2012 ◽  
Vol 157-158 ◽  
pp. 1346-1349 ◽  
Author(s):  
Yong Qi Wang ◽  
Chen Deng
Keyword(s):  
Support Vector Machine ◽  
Low Frequency ◽  
Digital Watermark ◽  
Experimental Results ◽  
Support Vector ◽  
Wavelet Domain ◽  
Image Watermark ◽  
Audio Watermark ◽  
Watermarking Scheme ◽  
Watermark Algorithm

This paper proposed an audio watermark algorithm with synchronization in wavelet domain based on support vector machine. The synchronization code and encrypted digital watermark are embedded into the low frequency coefficients in DWT domain by using quantization modulation, the image watermark and the synchronization code are extracted through SVM possessing two-class problem. The experimental results show that the audio watermarking scheme is inaudible, but also robust against noise adding, filtering, random cropping attacks.

Semi-fragile watermark algorithm based on second generation Bandelet and slant transform

2013 ◽  
Vol 32 (8) ◽  
pp. 2265-2267
Author(s):  
Shu WANG ◽  
Min-qing ZHANG ◽  
Jun-wei SHEN ◽  
Hai-yan XIAO
Keyword(s):  
Second Generation ◽  
Fragile Watermark ◽  
Slant Transform ◽  
Watermark Algorithm

MRF exemplar inpainting algorithm based on dual-tree complex wavelet domain

2013 ◽  
Vol 32 (2) ◽  
pp. 493-495
Author(s):  
Shuang WANG ◽  
Guang-qiu CHEN ◽  
Ya-ji SONG ◽  
Jun-xi SUN
Keyword(s):  
Wavelet Domain ◽  
Complex Wavelet

Multiscale Products in B-spline Wavelet Domain: A New Method for Short Exon Detection

2018 ◽  
Vol 13 (5) ◽  
pp. 553-563 ◽  
Author(s):  
Xiaolei Zhang ◽  
Guishan Zhang ◽  
Yangjiang Yu ◽  
Guocheng Pan ◽  
Haitao Deng ◽  
...  
Keyword(s):  
New Method ◽  
Wavelet Domain ◽  
Spline Wavelet ◽  
B Spline ◽  
Short Exon ◽  
Multiscale Products
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