Robust Image Hashing with Low-Rank Representation and Ring Partition

Table 1

Performances under different thresholds.

Threshold	Correct detection rate ()	False detection rate ()	Total error rate ()
50	100%	70.89%	70.89%
45	99.74%	61.73%	61.99%
40	99.69%	50.97%	51.28%
35	99.58%	39.01%	39.43%
30	99.17%	26.64%	27.47%
25	98.39%	15.32%	16.93%
20	96.88%	6.58%	9.70%
15	92.19%	1.65%	9.46%
10	80.31%	0.13%	19.82%