execute.txt

Embedding Process:
1. [127, 125, 123, 80, 118]
2. [11001001111111]
3. d12 = 2
4. t = 3; n1 = 3; n2 = 3; 
5. rmd1 = 7; rmd2 = 5;
6. n1 = 6; n2 = 2;
7. dv1 = 1; dv2 = -1;dv3 = 3;dv4 = -3;
8. p1' = 126; p2' = 122;
9. d12 = 4;
10. p1* = 126; p2* = 122;
11. pavg* = 124;
12. p3 = 123;
13. After APVD, 126, 122, 127
14. [p1*, p2*, p3*] = [126,122,127]
15. PVD on 80,118
16. d = 38, Lj = 32, Uj = 63
17. n = 5
18. dnew = 63
19. decn = 31; Lj = 32;
20. r = 25
21. p4* = 68; p5* = 131;

Extraction Process:
1. stego-pixel : 126, 122, 127, 68, 118; Taking 126, 122, 127
2. ds = 4
3. rmd1*  = 6; rmd2* = 2
4. ds in R1 so, represent rmd1 and rmd2 in 3 bit 
5. extracted bits = 110010
6. pavg* = 124,
7. On reverse APVD,pavg*, p3* we get 011;
8. concate 110010 and 011 -> 110010011
9. Stego pixel: 68, 118
10. ds = 63 
11. s = 31
12. s -> in 5 bits 
13. (31)2 -> 11111