Title :
A Novel Watermark Algorithm for Blind Extraction
Author :
Yu, Li ; Chen, Fen
Author_Institution :
Univ. of Electron. Sci. & Technol., Chengdu
Abstract :
A novel blind watermark algorithm based on DCT is proposed to embed several same watermarks into digital images in this paper. The watermark is designed to be decoded without the original image. Experimental results show that embedded watermarks using the proposed algorithm can give good image quality and are robust in varying degree to JPEG compression, low-pass filtering, noise contamination, and cropping attacks.
Keywords :
data compression; discrete cosine transforms; feature extraction; image coding; image denoising; low-pass filters; watermarking; DCT; JPEG compression; blind extraction; blind watermark algorithm; cropping attacks; digital images; discrete cosine transform; image quality; low-pass filtering; noise contamination; Decoding; Digital images; Discrete cosine transforms; Filtering algorithms; Image coding; Image quality; Low pass filters; Noise robustness; Transform coding; Watermarking;
Conference_Titel :
Computational Intelligence and Security Workshops, 2007. CISW 2007. International Conference on
Conference_Location :
Harbin
Print_ISBN :
978-0-7695-3073-4
DOI :
10.1109/CISW.2007.4425583
