Journal of Computer Science | |
Robust Image Watermarking Using Discrete Wavelet Transform | Science Publications | |
Krishnan Ammasi1  Dhandapani Samiappan1  | |
关键词: Digital watermarking; robustness; Discrete Wavelet Transform (DWT); attacks; Least Significant Bits (LSB); copyright protection; approximation; horizontal; Human Visual System (HVS); | |
DOI : 10.3844/jcssp.2011.1.5 | |
学科分类:计算机科学(综合) | |
来源: Science Publications | |
【 摘 要 】
Problem statement: Digital Watermarking have gained popularity in recent years as ameans of protecting multimedia data from illegal copying and unlawful reproduction. It is mainly usedfor copyright protection of multimedia data. Approach: In this study an image watermarkingalgorithm which is blind (do not require the presence of host image for detection) and robust isproposed. Results: The proposed watermarking scheme embeds the watermark in the Discrete WaveletTransform (DWT) domain. The watermark is a binary logo and is embedded in the subband of thewavelet decomposition. Conclusion: This watermarking scheme is robust to several attacks like JPEGcompression, rotation, Gaussian filtering, median filtering, cropping, scaling, sharpening, Gaussiannoise and salt and pepper noise.
【 授权许可】
Unknown
【 预 览 】
Files | Size | Format | View |
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RO201911300412706ZK.pdf | 196KB | download |