Graphics Reference
In-Depth Information
Table 3.4.
Performance of Algorithm 2 on raster scanned images.
Image
Mode of
Standard
Max length
Compression
MSQ
PSNR
approx.
error
for segment
in bpp
in db
Lena
line
4
64
1.897
190.19
25.33
segment
6
64
1.609
232.55
24.46
Girl
6
64
1.952
111.57
27.65
7
64
1.785
128.79
27.03
Lena
arc
15
64
1.933
40.27
32.08
segment
17
64
1.819
50.71
31.07
19
64
1.713
64.71
30.02
Girl
15
64
1.827
42.64
31.83
17
64
1.627
54.80
30.74
18
64
1.539
62.53
30.16
Table 3.5.
Performance of Algorithm 2 on Hilbert scanned images.
Image
Mode of
Standard
Max length
Compression
MSQ
PSNR
approx.
error
for segment
in bpp
in db
Lena
line
16
64
0.78
87.09
28.73
segment
18
64
0.72
92.98
28.44
20
64
0.66
101.51
28.06
Girl
16
64
0.76
77.52
29.23
17
64
0.71
81.20
29.03
18
64
0.67
85.49
28.81
Lena
arc
17
64
1.44
49.07
31.22
segment
19
64
1.34
53.81
30.82
Girl
18
64
1.48
101.42
28.06
20
64
1.33
114.48
27.54
Table 3.6.
Comparison between three different algorithms.
image Algorithm 1 Algorithm 2 Algorithm[86]
bpp PSNR bpp PSNR bpp
PSNR
in db
in db
in db
Lena 1.44 30.577 1.44 31.222 1.45
30.019
1.28 29.757 1.34 30.821 1.20
29.163
Girl 1.09 28.999 1.07 30.436 1.01
30.361
0.67 27.692 0.68 28.811 0.68
28.442
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