An Image Steganography Method Hiding Secret Data into Coefficients of Integer Wavelet Transform Using Pixel Value Differencing Approach

Table 1

Comparison of hiding capacity (in bytes).

Cover image	PVD method [1]		TPVD method [3]		Gulve’s method [4]		Proposed method
	Capacity	PSNR	Capacity	PSNR	Capacity	PSNR	Capacity	PSNR
Lena	50960	41.79	75836	38.89	81305	42.86	81326	39.84
Baboon	56291	37.90	82407	33.93	81766	41.99	82933	39.62
Peppers	50685	41.73	75579	38.50	81326	42.80	81387	40.29