. 2020 Jul 9;22(7):751. doi: 10.3390/e22070751

Table 2.

Effects of integration of prediction with DWT and RDLS-SS-DWT.

	Transform Variant	Time	Images
	Transform Variant	Rel.	Photo	No-Photo
1	r_DWT	1.00	3.9975	2.9162
2	∆r_DWT+Pred(5)	1.07	−0.18%	−1.33%
3	∆r_{RDLS-SS-DWT, NH(6,2,1)}	55.85	−1.08%	−17.59%
4	∆r_{RDLS-SS-DWT+Pred, NH(6,2,5)}	59.32	−2.08%	−31.19%
5	∆r_{RDLS-SS-DWT+Pred, NH(6,1,5)}	33.43	−2.05%	−31.16%
6	∆r_{RDLS-SS-DWT+Pred, NH(6,0,5)}	7.55	−1.46%	−30.63%
7	∆r_{RDLS-SS-DWT+Pred, NH(6,1,2)}	32.08	−1.94%	−30.66%
8	∆r_{SS-DWT+Pred, NH(2,1,5)}	6.20	−2.02%	−30.74%
9	∆r_{SS-DWT+Pred, NH(2,1,2)}	5.84	−1.91%	−30.22%
10	∆r_{SS-DWT+Pred, RH(2,1,5)}	4.45	−1.95%	−30.68%
11	∆r_{RDLS-SS-DWT+Pred, NH(6,0,2)}	7.25	−1.31%	−30.12%
12	∆r_{SS-DWT+Pred, NH(2,0,5)}	1.79	−1.46%	−30.31%
13	∆r_{SS-DWT+Pred, NH(2,0,2)}	1.69	−1.30%	−29.79%

Note: The variant’s compression time relative to the time of unmodified JPEG 2000 (Time rel.) is expressed without unit of measurement; the compression ratio of unmodified JPEG 2000 (r_DWT) is expressed in bpp, whereas the bitrate changes obtained due to introducing transform variants (∆r_variant) are expressed in percentages of r_DWT; besides variants introduced herein, the effects of applying non-hybrid RDLS-SS-DWT are reported in row 3.