Sciweavers

Share
ICIP
2002
IEEE

A blind watermarking technique in JPEG compressed domain

9 years 9 months ago
A blind watermarking technique in JPEG compressed domain
We proposed a blind watermarking technique to embed the watermark in JPEG compressed domain. Low frequency DCT coefficients are extracted to form an M-dimensional vector. Watermarking is achieved by modifying this vector in order to point to the centroid of a particular cell. This cell is determined according to the extracted vector, private keys and the watermark. A dual-key system is used to reduce the chance of the removal of watermark. An iterative approach is used to prevent the removal of watermark by JPEG re-quantization. Experimental results show that the watermark can be detected when the watermarked image is further compressed using a larger scaling factor.
Oscar C. Au, Peter H. W. Wong
Added 24 Oct 2009
Updated 27 Oct 2009
Type Conference
Year 2002
Where ICIP
Authors Oscar C. Au, Peter H. W. Wong
Comments (0)
books