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Wavelet-based watermarking of multispectral images
Author(s)
Ladthawanidphan, Mana
Rangsanseri, Yuttapong
Date Issued
December 1, 2003
Type
Conference Paper
Abstract
In this paper, we propose a digital watermarking technique for remote sensing multispectral images. The watermark is added to the multispectral image through the Karhunen Loève Transform. A multi-stage discrete wavelet transform is applied to the most principal component image and a pseudo-random sequence with a normal distribution is embedded to all high frequency coefficients at above a level adaptive threshold. The experimental result shows that the embedded watermark is robust against various signal processing and compression attack.
Citation
IASTED International Conference on Computer Graphics and Imaging, 301-304, 2003