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

Table 2

Difference measures between original and scrambled images.

Image	Color channel	Measures
		NPCR (%)	UACI (%)	MSE
Lena	R	99.6059	32.9915	3.7081 · 10^3
	G	99.6013	30.7161	3.0761 · 10 ^3
	B	99.5735	30.2703	3.0090 · 10^3
Peppers	R	99.5174	28.5412	2.6343 · 10^3
	G	99.3126	31.9327	3.3309 · 10 ^3
	B	99.2966	28.9468	2.7533 · 10^3
Baboon	R	99.5007	25.2236	2.1084 · 10^3
	G	99.4621	24.5648	1.8140 · 10 ^3
	B	99.5296	26.8748	2.3806 · 10^3