Two-Decoding-Option Image Sharing Method - Visual Cryptography and Secret Image Sharing - page 473

TABLE 17.1
Pixel expansions, le sizes of shadows, and contrasts of the previewed images for some (k;n)-TiOISSSs

Jin et al's TiOISSS #1 Lin and Lin's TiOISSS #2 the proposed TiOISSS

contrast of
previewed
image #4

(k,n) B 1 B 0 (m,w,g)

m #1 file size of shadowm #2 file size of shadow m #3 file size of shadow

(2, 2) #5 10
01

10
10

(2, 1, 1) 18 37748736

(4718592)

16 33554432

(4194304)

1 2097152 1/2

110
101

110
110

(2, 2) (3, 1, 2) 27 56623104

(7077888)

15.14 31750880

(3968860)

3/4 1572864 1/3

" 100
010
001

# " 100

100
100

#

(2, 3) #5

(3, 2, 1) 27 56623104

(7077888)

22.71 47626320

(5953290)

3/2 3145728 1/4

" 110
011
101

# " 110

110
110

#

(2, 3) (3, 1, 2) 27 56623104

(7077888)

22.71 47626320

(5953290)

3/4 1572864 1/3

2
4

3
5

2
4

3
5

1000
0100
0010
0001

1000
1000
1000
1000

(2, 4) #5 (4, 3, 1) 36 75497472

(9437184)

32 67108864

(8388608)

2 4194304 1/6

2
4

3
5

2
4

3
5

1100
0110
0011
1001

1100
1100
1100
1100

(2, 4) (4, 2, 2) 36 75497472

(9437184)

24.76 51925480

(6490685)

1 2097152 1/5

" 1001
0101
0011

# " 1010

1100
0110

#

(3, 3) #6

(4, 2, 2) 36 75497472 12.38 25962736

(3245342)

2/3 1398101 1/4