Reversible image watermarking
Reversible image watermarking
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DOI:
10.1109/icip.2003.1246784
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发表时间:
2003-11
期刊:
影响因子:
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通讯作者:
A. J. V. Leest;M. V. D. Veen;Fons Bruekers
中科院分区:
文献类型:
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作者:
A. J. V. Leest;M. V. D. Veen;Fons Bruekers
In this paper we present a reversible watermarking technique for digital images. In our context, reversibility refers to the ability to restore the original image by the watermark detector. The technique is based on a transformation function that introduces 'gaps' in the image histogram. The 'gaps' are used to encode the watermark. Several experiments revealed that a relatively high embedding rate may be achieved. For a set of test images we obtained embedding rates between 0.06 and 0.6 bits per pixel at PSNR levels of 45-50.