EURASIP Journal on Advances in Signal Processing

Table 2 The correlation coefficient between complexity measures (ICC, Quad tree, Fractal Dimension (FD) and ROI) and image quality measures (SSIM and JND) according to different watermarking methods (Spatial, DCT and Wavelet).

From: Estimating Watermarking Capacity in Gray Scale Images Based on Image Complexity

Complexity	SSIM			JND			Mean
measure	Spatial	DCT	Wavelet	Spatial		DCT	Wavelet
ICC	0.80	0.81	0.83	0.75	0.85	0.81	0.81
Quad tree	0.74	0.76	0.81	0.82	0.78	0.82	0.79
FD	0.81	0.81	0.90	0.79	0.84	0.81	0.83
ROI	0.93	0.94	0.92	0.89	0.91	0.94	0.92

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