Title :
Image watermarking based on invariant regions of scale-space representation
Author :
Seo, Jin S. ; Yoo, Chang D.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Korea Adv. Inst. of Sci. & Technol., Daejeon, South Korea
fDate :
4/1/2006 12:00:00 AM
Abstract :
This paper proposes a novel content-based image watermarking method based on invariant regions of an image. The invariant regions are self-adaptive image patches that deform with geometric transformations. Three different invariant-region detection methods based on the scale-space representation of an image were considered for watermarking. At each invariant region, the watermark is embedded after geometric normalization according to the shape of the region. By binding watermarking with invariant regions, resilience against geometric transformations can be readily obtained. Experimental results show that the proposed method is robust against various image processing steps, including geometric transformations, cropping, filtering, and JPEG compression.
Keywords :
data compression; image coding; image representation; synchronisation; watermarking; geometric transformations; image watermarking; invariant regions detection methods; scale-space image representation; scale-space representation; Discrete Fourier transforms; Distortion; Filtering; Information technology; Lattices; Noise reduction; Resilience; Robustness; Signal processing; Watermarking; Content-based synchronization; feature point; geometric distortion; invariant region; scale space; watermarking;
Journal_Title :
Signal Processing, IEEE Transactions on
DOI :
10.1109/TSP.2006.870581