Color Image Scrambling Technique Based on Transposition of Pixels between RGB Channels Using Knight’s Moving Rules and Digital Chaotic Map

Table 3

Mean values of NPCR, UACI, APCCs, and speed measures.

Measure	Digital image scrambling algorithm
	Dăscălescu and Boriga [17]	Dalhoum et al. [19]	Wu et al. [27]	Ye [52]	Ours
NPCR	99.431	90.126	94.163	93.676	99.489
UACI	25.032	NaN	NaN	NaN	29.006
APCC
Horizontal	0.0398	0.0767	0.0020	0.1059	0.0049
Vertical	0.0448	0.1007	0.0022	0.1094	0.0018
Speed (KB/s)	12.5 · 10^3	NaN	193.502	NaN	117.028