Blind Image Watermarking Based on Adaptive Data Spreading in n-Level DWT Subbands

Table 1

Test images.

	Resolution	DWT level	# of images
1:1	512×512	3	10
	1,024×1,024	4	10
4:3	640×480	3	10
	1,280×960	4	10
16:9	1,920×1,080	4	10
	3,840×2,160	5	10