DCT Watermarking Approach for Security Enhancement of Multimodal System

Table 4

Watermark Extraction Bit Error Rate due to median filtering (3 × 3).

Image	Watermark extraction BER (%)
	Proposed method	Method in [26]	Method in [27]
Texture	0	0.48	1.33
cameraman	0.02	0.57	2.25
India logo	0.08	0.53	1.45
Bank logo	0.01	0.61	3.97