Title :
A robust watermarking method for high quality image
Author :
Hyungshin Kim ; Yunju Baek ; Oh, H.S. ; Lee, H.K.
Author_Institution :
Dept. of Comput. Sci., Korea Adv. Inst. of Sci. & Technol., Seoul, South Korea
Abstract :
We propose a new image watermarking method for copyright protection. This method is a block based approach in the spatial domain. In addition to the perceptual invisibility and robustness, the image quality is also considered during the embedding procedure. Block activity is calculated to embed watermark. The watermark strength and the spread of the signal into a block are controlled by the block activity measurement. Experimental results show that the proposed method is suitable for the high quality image.
Keywords :
copyright; data compression; image coding; security of data; JPEG compression; block activity measurement; block based approach; copyright protection; cropping; detection procedure; embedding procedure; experimental results; geometrical attacks; high quality image; image compression; image watermarking method; perceptual invisibility; pixels; robust watermarking method; rotation; scaling; spatial domain; watermark insertion algorithm; watermark signal spread control; watermark strength control; Computer science; Copyright protection; Degradation; Digital images; Image coding; Image quality; Information science; Robustness; Virtual reality; Watermarking;
Conference_Titel :
Consumer Electronics, 1999. ICCE. International Conference on
Conference_Location :
Los Angeles, CA, USA
Print_ISBN :
0-7803-5123-1
DOI :
10.1109/ICCE.1999.785188
