Title :
Amplitude-modification resilient watermarking based on A-law companding
Author :
Lee, Kiryung ; Kim, Dong Sik ; Moon, Kyung Ae
Author_Institution :
Electron. & Telecommun. Res. Inst., Taejeon, South Korea
Abstract :
In order to design an efficient blind watermarking scheme, Eggers, et al. (2000) proposed the scalar Costa scheme (SCS). However, SCS, which is based on the uniform scalar quantizer, is vulnerable to the amplitude modification. In this paper, we propose an amplitude-modification resilient watermarking scheme, which is a modified SCS based on the A-law companding. By using the A-law companding, resilience against the amplitude modification can be achieved.
Keywords :
amplitude modulation; decoding; encoding; watermarking; A-law companding; amplitude modification; blind watermarking scheme; modified scalar Costa scheme; resilient watermarking; uniform scalar quantizer; AWGN; Additive white noise; Amplitude estimation; Decoding; Delta modulation; Design engineering; Moon; Quantization; Resilience; Watermarking;
Conference_Titel :
Image Processing, 2003. ICIP 2003. Proceedings. 2003 International Conference on
Print_ISBN :
0-7803-7750-8
DOI :
10.1109/ICIP.2003.1246716
