An Improved QIM Watermarking Algorithm

Zhen Xian Lin; Yuan Sheng Li; Jian Tao Li

doi:10.4028/www.scientific.net/AMM.644-650.4641

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 644-650An Improved QIM Watermarking Algorithm

An Improved QIM Watermarking Algorithm

Abstract:

Put forward an improved QIM watermark embedding algorithm. The carrier image is transformed into YCbCr space, lifting wavelet transform the three components, then using the QIM quantization method embeds watermark into high frequency coefficients of Cb and Cr component, and Y component of low frequency coefficients. The experimental results show that embedded watermark which using improved algorithm has good invisibility. Anti attack test results show that after using common attack method attack the image embedded watermark, it can still extract the watermark completely. The anti-attack performance of improved QIM algorithm is much better than texture watermarking algorithm based on DCT.

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Periodical:

Applied Mechanics and Materials (Volumes 644-650)

Pages:

4641-4644

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.644-650.4641

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Online since:

September 2014

Authors:

Zhen Xian Lin*, Yuan Sheng Li, Jian Tao Li

Keywords:

High Frequency Coefficient, Lifting Wavelet Transform, Low Frequency Coefficient, Multiple Watermark Embedding, QIM Quantization

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* - Corresponding Author

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