A High-Capacity Image Steganography Method Using Chaotic Particle Swarm Optimization

Table 3

Possible values for SB-pole, SB-dire, and Bp-dire particle.

Particle name	Value	Description
SB-pole	0	No change is made to secret bits
	1	All secret bits are complemented
SB-dire	0	No change is made to secret bits
	1	Secret bits are reversed from end to beginning
BP-dire	0	Bit-planes are used from MSB to LSB
	1	Bit-planes are used from LSB to MSB