Title :
Geometric Distortions Correction Scheme Based on Hausdorff Distance for Digital Watermarking Image
Author :
Nian, Guijun ; Tang, Xiaonian ; Wang, Dang
Author_Institution :
Sch. of Phys., Jilin Univ., Changchun, China
Abstract :
One of the methods for detecting watermarks after geometrical distortions is correcting distorted watermarked image before detecting. In this paper, a definition of weight Hausdorff distance is defined. It is applied to evaluation the similarity between original and geometric distorted watermarking image. A fast divide and conquer strategy in six dimension is used to search the transformation parameters. The geometric distortion is corrected by the parameters. As a result, a distorted watermarking image could be corrected based on image feature.
Keywords :
divide and conquer methods; feature extraction; image coding; watermarking; Hausdorff distance; digital watermarking image; divide-and-conquer strategy; geometric distortions correction scheme; image feature; Detectors; Distortion measurement; Electronic mail; Feature extraction; Image edge detection; Immune system; Information technology; Parameter estimation; Physics; Watermarking;
Conference_Titel :
Multimedia and Information Technology (MMIT), 2010 Second International Conference on
Conference_Location :
Kaifeng
Print_ISBN :
978-0-7695-4008-5
Electronic_ISBN :
978-1-4244-6602-3
DOI :
10.1109/MMIT.2010.93
