New Framework of Self-Embedding Fragile Watermarking Based on Reference Sharing Mechanism

Table 1

Details of the 15 character bits generation methods.

Index		Character bits number per block	Ei
1	5MSB	320	5.50
2	DCT level 1	120	49.53
3	DCT level 2	112	63.41
4	DCT level 3	98	88.79
5	DCT level 4	80	127.61
6	DWT LL1	128	176.33
7	DCT level 5	60	180.21
8	VQ level 1	40	187.65
9	VQ level 2	36	204.90
10	VQ level 3	32	227.34
11	DCT level 6	40	255.10
12	VQ level 4	28	255.56
13	DCT level 7	22	376.95
14	DCT level 8	8	638.20
15	AMBTC	80	1185.87