基于QDCT和HVS的双彩色图像水印算法

doi:10.16180/j.cnki.issn1007-7820.2020.08.004

Abstract

Abstract:

Aiming at the mutually restricted problem of information capacity, invisibility and robustness in watermarking, a dual color image watermarking algorithm based on QDCT and HVS was proposed. With this algorithm, a colored carrier image and a colored watermarking image were subject to QDCT. The embedding location and strength of watermarking information were decided based on the characteristics of HVS. Based on the generalized Arnold transform and redundant embedding strategy, the QDCT coefficient of the watermarking image was embedded into the real part and imaginary part of the QDCT coefficient of the carrier image. The experiment result showed with this algorithm, most of NC values of the watermark extracted under common attacks were higher than 0.95 and the watermark information possessed better invisibility and robustness for the colored watermark-embedded image when PSNR was 35 dB.

Key words: quaternion, QDCT, HVS, generalized Arnold transform, redundant embedding, dual color image watermarking

CLC Number:

TN918

JING Zhengjun,QI Gang. Dual Color Image Watermarking Algorithm Based on QDCT and HVS[J].Electronic Science and Technology, 2020, 33(8): 21-27.

Figures/Tables 8

Figure 1.

Figure 2.

Table 2

Table 3

Figure 3.

Table 4

References 17

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Su等^[5]	Su等^[6]	刘等^[7]	Chen等^[16]	本文

PSNR 35.157 0	35.366 7	35.008 8	38.346 4	40.246 6

NC 1.000 0	0.999 8	0.999 6	1.000 0	1.000 0

中值滤波 (3×3)	均值滤波 (3×3)	高斯滤波 (3×3)	JPEG压缩 (q=30)	直方图均衡化
0.990 8	0.991 1	0.999 0	0.943 9	0.983 8
高斯噪声 (σ=0.1)	椒盐噪声 (σ=0.1)	平移 (100,0)	剪切 50%	亮度降低 30%
0.876 6	0.936 4	0.930 4	0.982 4	0.995 8

算法	载体图像图1(a)		测试载体图像集
	水印图2(a)	水印图2(b)	水印图2(a)	水印图2(b)
	水印图2(a)	水印图2(b)	PSNR_AVE	PSNR_AVE
Su等^[5]	35.157 0	35.140 6	33.166 9	33.189 4
Su等^[6]	35.366 7	35.425 0	35.440 8	35.436 9
刘等^[7]	35.008 8	35.017 9	34.933 2	34.959 6
Chen等^[16]	38.346 4	38.273 5	38.229 0	38.171 9
本文	40.246 6	42.455 6	39.422 1	41.299 0

攻击类型
中值滤波 (3×3)	图2(a)	0.811 9	0.877 8	0.966 6	0.891 0	0.990 4
中值滤波 (3×3)	图2(b)	0.808 1	0.836 3	0.938 3	0.885 3	0.990 0
均值滤波 (3×3)	图2(a)	0.808 0	0.883 1	0.953 4	0.895 1	0.991 3
均值滤波 (3×3)	图2(b)	0.811 6	0.843 9	0.914 4	0.882 0	0.990 2
高斯滤波 (3×3)	图2(a)	0.992 0	0.992 5	0.991 3	0.996 5	0.998 9
高斯滤波 (3×3)	图2(b)	0.980 6	0.982 3	0.978 3	0.992 5	0.998 7
JPEG压缩 (q=30)	图2(a)	0.905 2	0.848 9	0.825 0	0.909 8	0.947 9
JPEG压缩 (q=30)	图2(b)	0.856 9	0.819 3	0.808 5	0.873 7	0.952 3
高斯噪声 (σ=0.1)	图2(a)	0.848 4	0.795 2	0.800 1	0.877 1	0.931 4
高斯噪声 (σ=0.1)	图2(b)	0.821 8	0.795 4	0.798 3	0.871 8	0.951 2
椒盐噪声 (σ=0.1)	图2(a)	0.926 8	0.912 4	0.847 9	0.872 4	0.952 4
椒盐噪声 (σ=0.1)	图2(b)	0.884 3	0.8674	0.822 3	0.875 0	0.968 0
平移 (100,0)	图2(a)	0.803 8	0.835 1	0.836 8	0.821 8	0.937 6
平移 (100,0)	图2(b)	0.834 8	0.760 9	0.758 1	0.816 1	0.945 9
裁剪50%	图2(a)	0.966 7	0.852 4	0.855 2	0.873 5	0.981 0
裁剪50%	图2(b)	0.931 8	0.801 7	0.7947	0.856 5	0.983 0
直方图均衡化	图2(a)	0.997 0	0.787 2	0.809 7	0.932 7	0.990 3
直方图均衡化	图2(b)	0.990 7	0.793 2	0.795 7	0.901 7	0.967 7
亮度降低 30%	图2(a)	0.999 3	0.839 2	0.823 6	0.997 4	0.995 7
亮度降低 30%	图2(b)	0.997 9	0.824 0	0.808 1	0.989 8	0.995 9

攻击类型	Su等^[5]	Su等^[6]	刘等^[7]	Chen等^[16]	本文
中值滤波 (3×3)
中值滤波 (3×3)	0.814 1	0.894 6	0.983 2	0.897 0	0.990 0
均值滤波 (3×3)
均值滤波 (3×3)	0.813 9	0.888 1	0.957 4	0.902 3	0.991 8
高斯滤波 (3×3)
高斯滤波 (3×3)	0.996 3	0.995 5	0.993 2	0.996 5	0.998 9
JPEG 压缩 (q=30)
JPEG 压缩 (q=30)	0.896 2	0.845 2	0.829 5	0.912 8	0.946 2
高斯噪声 (σ=0.1)
高斯噪声 (σ=0.1)	0.848 8	0.792 6	0.802 1	0.870 4	0.949 2
椒盐噪声 (σ=0.1)
椒盐噪声 (σ=0.1)	0.923 6	0.907 0	0.857 2	0.869 0	0.977 7
剪切50%
剪切50%	0.968 0	0.857 8	0.854 1	0.866 3	0.982 9
平移 (100,0)
平移 (100,0)	0.8028	0.837 7	0.838 1	0.824 6	0.931 6
直方图均衡化
直方图均衡化	0.9980	0.7746	0.782 9	0.924 9	0.992 1
亮度降低30%
亮度降低30%	1.0000	0.8303	0.826 1	0.998 1	0.995 4

Dual Color Image Watermarking Algorithm Based on QDCT and HVS

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