Robust Visual Secret Sharing Scheme Applying to QR Code

Table 2

Performance of proposed technique against various attacks.

Type of Attack	Parameter	Whether can be decoded correctly (yes/no)?	Type of Attack	Parameter	Whether can be decoded correctly (yes/no)?
JPEG Compression	Q = 90	yes	Rotation	15°	yes
	Q =85	yes		30°	yes
	Q = 8	yes		45°	yes
	Q = 75	yes		60°	yes
	Q = 70	no		75°	yes
Gaussian Noise	Mean = 0,; Variance =1	yes	Resizing	0.8	yes
	Mean = 0,; Variance =2	yes		1.1	yes
	Mean = 0,; Variance =3	yes		1.4	yes
	Mean = 0,; Variance =4	yes		1.7	yes
	Mean = 0,; Variance =5	yes		2.0	yes
Gaussian Noise	Mean = 0,; Variance =6	yes	Cropping	1/100	yes
	Mean = 0,; Variance =7	yes		1/25	yes
	Mean = 0,; Variance =8	yes		9/100	yes
	Mean = 0,; Variance =9	no		4/25	yes
				1/4	yes
				9/25	no