A Chaos Robustness Criterion for 2D Piecewise Smooth Map with Applications in Pseudorandom Number Generator and Image Encryption with Avalanche Effect

Table 6

Differences between the original keystream and the keystreams , measured by norm .

	(×10^−1)
	0.25520	0.28385	0.24254	0.27552	0.24290
	0.5253	0.30803	0.28799	0.23376	0.29791