Digital image watermarking based on relationship of coefficients in DCT domain

Computer Engineering and Applications ›› 2008, Vol. 44 ›› Issue (5): 125-127.

• 研发、测试 • Previous Articles Next Articles

Digital image watermarking based on relationship of coefficients in DCT domain

JIANG Ming¹,SUN Shui-fa^1,2,ZHENG Sheng^1,2,WAN Jun-li¹

1.College of Electrical Engineering and Information Technology，China Three Gorges University，Yichang，Hubei 443002，China
2.Institute of Intelligent Vision and Image Information，China Three Gorges University，Yichang，Hubei 443002，China

Received:2007-07-02 Revised:2007-08-23 Online:2008-02-11 Published:2008-02-11
Contact: JIANG Ming

基于系数关系的DCT域数字图像水印

蒋铭¹,孙水发^1,2,郑胜^1,2,万钧力¹

1.三峡大学电气信息学院，湖北宜昌 443002
2.三峡大学智能视觉与图像信息研究所，湖北宜昌 443002

通讯作者: 蒋铭

Abstract

Abstract: A blind digital image watermarking algorithm in DCT domain is proposed.In the algorithm，block DCT with size of 8*8 is performed on the given image.The relationship between the selected DCT middle frequency coefficients is used to embed the watermark.No original image is needed when detecting the watermark.The embedding position of the watermark is determined by a key and the security is enhanced.Numerical experiments are carried out and the results show that the algorithm can resist against several attacks，such as JPEG compression，adding noise，histogram equalization，keeping the watermark imperceptible.

Key words: digital watermarking, DCT, coefficients relationship, blind watermarking

摘要： 提出了一种DCT域的数字图像盲水印算法，该算法将图像进行8*8分块后对各块图像进行DCT变换。之后将水印信息嵌入到选取的中频系数之间的关系中；提取水印时不需要原始图像，实现了盲检测；而且水印嵌入位置可由密码控制，增强了算法的保密性和灵活性；不可感知性和鲁棒性可调。仿真实验结果表明该算法在保证水印不可感知性的情况下，对一些常见的恶意攻击具有良好的鲁棒性。

关键词: 数字水印, DCT变换, 系数关系, 盲水印

JIANG Ming¹,SUN Shui-fa^1,2,ZHENG Sheng^1,2,WAN Jun-li¹. Digital image watermarking based on relationship of coefficients in DCT domain[J]. Computer Engineering and Applications, 2008, 44(5): 125-127.

蒋铭¹,孙水发^1,2,郑胜^1,2,万钧力¹. 基于系数关系的DCT域数字图像水印[J]. 计算机工程与应用, 2008, 44(5): 125-127.

[1]	DU De, GAO Baolu, TIAN Li. Terrain Compression Rendering Technology Combining Fast Layered DCT and Dynamic LOD [J]. Computer Engineering and Applications, 2020, 56(13): 223-229.
[2]	DING Zhuihui. Sonar signal identification method based on Discrete Cosine Transform [J]. Computer Engineering and Applications, 2018, 54(1): 133-139.
[3]	WANG Yan, WANG Yunyun. Face feature extraction method based on fusing DCT and ELBP features [J]. Computer Engineering and Applications, 2017, 53(4): 170-175.
[4]	TAO Biaoli, WANG Rangding, YAN Diqun, JIN Chao. Detection method of double compressed MP3 audio with same bit-rate [J]. Computer Engineering and Applications, 2017, 53(11): 137-141.
[5]	XUE Juntao, JIN Zhigang, YANG Zhengling, ZHANG Jun. Analysis of watermarking model based on similarity of vectors [J]. Computer Engineering and Applications, 2016, 52(24): 116-120.
[6]	KANG Liangcheng, LI Chaofeng. JPEG compressed image quality assessment method based on digital watermarking in contourlet domain [J]. Computer Engineering and Applications, 2016, 52(21): 206-210.
[7]	DU Nannan, ZHAO Hui. Rearch on prosodic hierarchy conversion for Uyghur emotional speech [J]. Computer Engineering and Applications, 2016, 52(19): 154-160.
[8]	JIANG Ce, PENG Jian, XIANG Lingyun, LI Feng. Research on text reversible digital watermarking based on Hamming code [J]. Computer Engineering and Applications, 2016, 52(11): 84-87.
[9]	ZHAO Taotao, YANG Hongwu. Formant extraction algorithm of speech signal by combining EMD and WMCEP [J]. Computer Engineering and Applications, 2015, 51(9): 207-212.
[10]	HUANG Dong, YANG Wan’an. Robust digital watermarking by balancing feature points based on Harris-Laplacian [J]. Computer Engineering and Applications, 2015, 51(7): 101-105.
[11]	WANG Wei1, YANG Weiwei1, LI Zhengchen2. Compressed sensing for image processing based on DCT fan-shaped segmentation [J]. Computer Engineering and Applications, 2015, 51(24): 186-189.
[12]	WANG Yibing1, HU Bangjun2. Robust face recognition based on low frequency DCT coefficients retransforming optimized by CLAHE [J]. Computer Engineering and Applications, 2014, 50(9): 135-140.
[13]	XU Haobo, YU Fengqin. Speech compressed sensing based on sparse pre-treatment and circulant measurement [J]. Computer Engineering and Applications, 2014, 50(23): 220-224.
[14]	WANG Yongmao, WANG Yukun, ZHAO Shan. Face recognition in DCT domain with Laplacian score ranking [J]. Computer Engineering and Applications, 2014, 50(16): 1-6.
[15]	WU Baiyan1, LI Chaokui1, WANG Wei2. Vector map data watermarking model controlling curve shape distortion [J]. Computer Engineering and Applications, 2014, 50(1): 74-77.

Digital image watermarking based on relationship of coefficients in DCT domain

基于系数关系的DCT域数字图像水印

PDF

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics