Research Article
A High-Capacity Image Steganography Method Using Chaotic Particle Swarm Optimization
Algorithm 3
Pseudocode of data extraction.
| (1) | Extract the particles from the last row of stego-image | | (2) | Prepare the image blocks using the X-Side-Length and Y-Side Length particles | | (3) | Create a sequence of stego pixels using the Directions, X-offset, and Y-offset particles | | (4) | Convert the stego pixels sequence into a sequence of bits using the Bit-Planes and BB-dire particles | | (5) | if (SB-Pole= 1) | | (6) | Complement the secret bits | | (7) | end if | | (8) | if (SB-dire = 1) | | (9) | Reverse the direction of the secret bits | | (10) | end if | | (11) | Extract the secret pixels from the secret bits | | (12) | Render secret image using the secret pixels | | (13) | end |
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