Title :
A novel watermarking scheme based on relationship of Tchebichef Moments
Author :
Lv, Wanli ; Guo, Yutang ; Ma, Jixin ; Luo, Bin
Author_Institution :
Key Lab. of Intell. Comput. & Signal Process. of Minist. of Educ., Anhui Univ., Hefei
Abstract :
In this paper, a novel watermarking scheme based on relationship of Tchebichef moments is proposed. Firstly, the image is divided into blocks; then the Tchebichef momentpsilas relationship of each block is computed, which is computed rapidly with the help of the look-up-table; finally, the Tchebichef moments of each block are modified to embed watermark. The watermark extraction is the reverse procedure of the watermark embedding and the original image is not necessary in the watermark detection. Experimental results demonstrate that the proposed watermarking technique is robustness to attacks such as JPEG compress, noises, luminance and contrast enhancement and low pass filtering.
Keywords :
feature extraction; image coding; image enhancement; low-pass filters; table lookup; JPEG compress; JPEG luminance; JPEG noises; Tchebichef moments; contrast enhancement; image watermarking scheme; look-up-table; low pass filtering; watermark extraction; Computer networks; Computer science education; Embedded computing; Frequency domain analysis; Humans; Image reconstruction; Polynomials; Robustness; Signal processing; Watermarking; Discrete Orthogonal Polynomials; Tchebichef Moments; Watermarking;
Conference_Titel :
Neural Networks and Signal Processing, 2008 International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-2310-1
Electronic_ISBN :
978-1-4244-2311-8
DOI :
10.1109/ICNNSP.2008.4590328
