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Watermarking for images based on color manipulation and block subdivision

Battiato S., Castorina A.

Image Processing & Communications

2000

Vol. 6, no 1-2

29-38

In this paper we present a new watermarking scheme for color images. The method represents an improvement and a loose variation of the work done in [l, 2], where the authors proposed to alter the colors of a given image in an imperceptible way. Despite the theoretical accuracy of the method, an intensive testing has shown the weakness against some common image processing techniques in particular: JPEG compression, scaling and low-pass filtering. Experimental results will be produced, in order to demonstrate the validity of our new approach.