A Novel HDR Image Zero-Watermarking Based on Shift-Invariant Shearlet Transform

Table 2

Attacks used in experiments.

Number	TM attacks	Number	Common attacks
TM1	KrawczykTMO	CA1	‘Salt&Pepper’ (0.001)
TM2	GammaTMO	CA2	Median filter (3 × 3)
TM3	AshikhminTM0	CA3	Median filter (5 × 5)
TM4	LogarithmicTMO	CA4	Scaling (4)
TM5	MertensTMO	CA5	Scaling (1/4)
TM6	WardGlobalTMO	CA6	Gaussian low-pass filter (3 × 3)
TM7	WardHistAdjTMO	CA7	Poisson noise
TM8	LischinskiTMO	CA8	Image sharpen (0.5)
TM9	ReinhardDevlinTMO	CA9	Average filter (4 × 4)
TM10	RamanTMO	CA10	Imrotate (10)
TM11	DragoTMO
TM12	TumblinRushmeierTMO
TM13	DurandTMO
TM14	FattalTMO