Year: 2013
Type: report
Abstract: In this report, a watermarking method for grayscale images is proposed that is invisible and robust to certain attacks. Chaotic maps are used to generate the watermark which improves the security of the method. The crown watermark is embedded in the real part of DFT domain and the embedding position is determined by the SURF algorithm. The peak signal-to-noise ratio is used to evaluate the perceived quality of the marked image. Normalized cross correlation is used for watermark detection. The original image is not required during the detection. Experiments are conducted to evaluate the robustness of the proposed method against different attacks on several images.
Source: HAL
Author: Ye, Rui
Language: English
Subfield: Computer Vision and Pattern Recognition
Field: Computer Science
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2594019800