A practical DCT based blind image watermarking scheme for print-and-scan process

2010 ◽  
Author(s):  
Jianming Jin ◽  
Huiman Hou ◽  
Yuhong Xiong
Keyword(s):  
Image Watermarking ◽  
Watermarking Scheme ◽  
Blind Image

A Blind Image Watermarking Scheme Using Fast Hadamard Transform

2010 ◽  
Vol 9 (7) ◽  
pp. 1369-1375 ◽  
Author(s):  
Yong Zhang ◽  
Zhe-Ming Lu ◽  
Dong-Ning Zhao
Keyword(s):  
Image Watermarking ◽  
Hadamard Transform ◽  
Watermarking Scheme ◽  
Blind Image

Reference based semi blind image watermarking scheme in wavelet domain

Optik ◽  
2017 ◽  
Vol 142 ◽  
pp. 191-204 ◽  
Author(s):  
Geeta Kasana ◽  
Singara Singh Kasana
Keyword(s):  
Image Watermarking ◽  
Wavelet Domain ◽  
Watermarking Scheme ◽  
Blind Image

scholarly journals Blind Image Watermarking Based on Adaptive Data Spreading in n-Level DWT Subbands

2019 ◽  
Vol 2019 ◽  
pp. 1-11 ◽  
Author(s):  
Yong-Seok Lee ◽  
Young-Ho Seo ◽  
Dong-Wook Kim
Keyword(s):  
Image Watermarking ◽  
Geometric Attacks ◽  
Adaptive Watermarking ◽  
N Level ◽  
Global Space ◽  
Typical Scheme ◽  
Pixel Value ◽  
Blind Extraction ◽  
Watermarking Scheme ◽  
Blind Image

This paper proposes a new adaptive watermarking scheme for digital images, which has the properties of blind extraction, invisibility, and robustness against attacks. The typical scheme for invisibility and robustness consisted of two main techniques: finding local positions to be watermarked and mixing or embedding the watermark into the pixels of the locations. In finding the location, however, our scheme uses a global space such that the multiple watermarking data is spread out over all four lowest-frequency subbands, resulting from n-level Mallat-tree 2D (dimensional) DWT, where n depends on the amount of watermarking data and the resolution of the host image, without any further process to find the watermarking locations. To embed the watermark data into the subband coefficients, weighting factors are used according to the type and energy of each subband to adjust the strength of the watermark, so we call this an adaptive scheme. To examine the ability of the proposed scheme, images with various resolutions are tested for various attacks, both pixel-value changing attacks and geometric attacks. With experimental results and comparison to the existing works we show that the proposed scheme has better performance than the previous works, except those which specialize in certain types of attacks.

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