A Improved Digital Watermarking Based on the B-SVD
Wan Liu · Computers & Security · 2009
Algorithm which based on Block Singular Value Decomposition (B-SVD) for embedding the watermarking performs well for robustness the geometry attack. When the watermark bits are embedded into the original image, the largest SVD value may be changed .Therefore, the quality of the image will be degrade. Here, a watermarking algorithm based on block singular value decomposition (SVD) is proposed, the problem which mentioned above can be resolve well. At the same time, wavelet transform to the image can resist normal attack, so the algorithm does well in the security and practicability.