Table 1. Comparison of size rate (in bpp) for the Lukas corpus, listed in the first column.

The third column shows the bpp values corresponding to the sparse representation in the pixel domain (S_pd). The forth column shows the corresponding results in the wavelet domain (S_wd). The fifth and sixth columns are the bpp values for the formats JPEG and JPEG2, respectively. All the approaches render a MSSIM ≥ 0.997 and the values of PSNR listed in the second column.

Image	dB	Spd	Swd	JPEG	JPEG2
1 Hand1	48.1	0.443	0.286	0.436	0.234
2 Foot0	48.6	0.462	0.306	0.449	0.247
3 Head0	47.4	0.441	0.320	0.419	0.244
4 Knee1	48.0	0.488	0.316	0.485	0.286
5 Foot1	48.1	0.624	0.391	0.566	0.335
6 Sinus0	47.1	0.676	0.416	0.575	0.334
7 Hand0	48.8	0.612	0.424	0.586	0.371
8 Head1	46.4	0.599	0.452	0.546	0.346
9 Knee0	49.1	0.612	0.419	0.573	0.364
10 Sinus1	45.8	0.697	0.453	0.594	0.358
11 Breast0	44.3	0.519	0.465	0.605	0.393
12 Breast1	44.3	0.691	0.629	0.832	0.521
13 Thorax0	44.1	0.827	0.686	0.874	0.629
14 Thorax1	43.4	0.816	0.693	0.924	0.619
15 Leg0	48.9	1.000	0.867	1.152	0.759
16 Leg1	49.2	1.384	1.240	1.584	1.056
17 Pelvis1	44.3	1.596	1.418	1.828	1.248
18 Pelvis0	44.4	1.606	1.435	1.827	1.310
19 Spine1	47.0	2.131	1.922	2.463	1.630
20 Spine0	47.4	2.395	2.298	2.764	1.902
Mean Value	46.7	0.938	0.727	1.004	0.659
Std	1.9	0.573	0.521	0.707	0.500