Image Authentication Using Block Truncation Coding in Lifting Wavelet Domain

被引:2
作者
Bhardwaj, Anuj [1 ]
Verma, Vivek Singh [2 ]
Gupta, Sandesh [3 ]
机构
[1] Jaypee Inst Informat Technol, Dept Math, Noida 201309, Uttar Pradesh, India
[2] Ajay Kumar Garg Engn Coll, Dept Informat Technol, Ghaziabad 201009, Uttar Pradesh, India
[3] CSJM Univ, Univ Inst Engn & Technol, Dept Comp Sci & Engn, Kanpur 208024, Uttar Pradesh, India
关键词
Robustness; imperceptibility; digital watermarking; block truncation coding; lifting wavelet transform; WATERMARKING SCHEME; ROBUST; CONSTRUCTION; DIFFERENCE; EXTRACTION; TRANSFORM;
D O I
10.1142/S0219467822500115
中图分类号
TP31 [计算机软件];
学科分类号
081202 ; 0835 ;
摘要
Image watermarking is one of the most accepted solutions protecting image authenticity. The method presented in this paper not only provides the desired outcome also efficient in terms of memory requirements and preserving image characteristics. This scheme effectively utilizes the concepts of block truncation coding (BTC) and lifting wavelet transform (LWT). The BTC method is applied to observe the binary watermark image corresponding to its gray-scale image. Whereas, the LWT is incorporated to transform the cover image from spatial coordinates to corresponding transform coordinates. In this, a quantization-based approach for watermark bit embedding is applied. And, the extraction of binary watermark data from the attacked watermarked image is based on adaptive thresholding. To show the effectiveness of the proposed scheme, the experiment over different benchmark images is performed. The experimental results and the comparison with state-of-the-art schemes depict not only the good imperceptibility but also high robustness against various attacks.
引用
收藏
页数:14
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