High Embedding Capacity Data Hiding Algorithm for H.264/AVC Video Sequences without Intraframe Distortion Drift

Table 2

Comparison of embedding capacity of the proposed scheme and two previous schemes [17, 18] in terms of embedded bits per 4 × 4 block.

QP	Ma et al.	Lin et al.	Proposed	Improvement rate
				Ma et al.	Lin et al.
18	0.97	1.32	1.46	51%	11%
23	0.69	0.94	1.33	93%	41%
28	0.49	0.67	1.14	133%	70%
33	0.24	0.31	1.00	317%	223%
38	0.10	0.13	0.87	770%	569%
43	0.03	0.04	0.76	2433%	1800%
Average	0.42	0.57	1.09	160	91