UNSPECIFIED (2003) Fixed point in fractal image compression as watermarking. In: IEEE International Conference on Image Processing, SEP 14-17, 2003, BARCELONA, SPAIN.

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Abstract

Conventional approaches to embedding digital watermarks [1] are done by adjusting spatial pixel values or frequency coefficients. We propose a novel way to achieve attack detection by calculating the image's fractal compression fixed point which is an approximation to the original image. After such transformation the fixed point image survives fractal image compression and is extremely sensitive to manipulations. A method to embed digital signatures into the fixed point is also presented in order to provide authentication.

Item Type:	Conference Item (UNSPECIFIED)
Subjects:	Q Science > QA Mathematics > QA76 Electronic computers. Computer science. Computer software T Technology > TR Photography
Journal or Publication Title:	2003 INTERNATIONAL CONFERENCE ON IMAGE PROCESSING, VOL 2, PROCEEDINGS
Publisher:	IEEE
ISBN:	0-7803-7750-8
Date:	2003
Number of Pages:	4
Page Range:	pp. 475-478
Publication Status:	Published
Title of Event:	IEEE International Conference on Image Processing
Location of Event:	BARCELONA, SPAIN
Date(s) of Event:	SEP 14-17, 2003
URI:	http://wrap.warwick.ac.uk/id/eprint/9034

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