Digital watermarking algorithm research of color images based on quaternion Fourier transform

Mali An; Weijiang Wang; Zhen Zhao

doi:10.1117/12.2030754

26 October 2013 Digital watermarking algorithm research of color images based on quaternion Fourier transform

Mali An, Weijiang Wang, Zhen Zhao

Proceedings Volume 8917, MIPPR 2013: Multispectral Image Acquisition, Processing, and Analysis; 89170M (2013) https://doi.org/10.1117/12.2030754
Event: Eighth International Symposium on Multispectral Image Processing and Pattern Recognition, 2013, Wuhan, China

Abstract

A watermarking algorithm of color images based on the quaternion Fourier Transform (QFFT) and improved quantization index algorithm (QIM) is proposed in this paper. The original image is transformed by QFFT, the watermark image is processed by compression and quantization coding, and then the processed watermark image is embedded into the components of the transformed original image. It achieves embedding and blind extraction of the watermark image. The experimental results show that the watermarking algorithm based on the improved QIM algorithm with distortion compensation achieves a good tradeoff between invisibility and robustness, and better robustness for the attacks of Gaussian noises, salt and pepper noises, JPEG compression, cropping, filtering and image enhancement than the traditional QIM algorithm.

Citation Download Citation

Mali An, Weijiang Wang, and Zhen Zhao "Digital watermarking algorithm research of color images based on quaternion Fourier transform", Proc. SPIE 8917, MIPPR 2013: Multispectral Image Acquisition, Processing, and Analysis, 89170M (26 October 2013); https://doi.org/10.1117/12.2030754

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