FPGA Implementation of Digital Images Watermarking System Based on Discrete Haar Wavelet Transform

Table 6

NC and PSNR comparison against other works.

	Attacks	Method	PSNR	NC
In presence of attacks	JPEG-2000 Q=80	Ref [18]	32.1072	0.989
		Ref [19]	44.06	0.994
		Proposed algorithm	39.09	1
	Salt & pepper 0.05	Ref [18]	23.1951	0.918
		Ref [19]	26.33	0.847
		Proposed algorithm	28.23	0.969
	Cropping 25%	Ref [18]	---	---
		Ref [19]	29.07	0.847
		Proposed algorithm	18.09	0.410