Novel Meaningful Image Encryption Based on Block Compressive Sensing

Table 2

Comparison of the time cost.

	Encryption Time (s)			Decryption Time (s)
	Reference [21]	Reference [31]	Proposed algorithm	Reference [21]	Reference [31]	Proposed algorithm
Lena	0.7828	0.0617	0.1146	1.7378	8.7035	2.0058
Barbara	0.7886	0.0558	0.1157	1.7244	8.6632	1.9957
House	0.7885	0.0579	0.1183	1.7393	8.6463	1.9983
Peppers	0.7958	0.0702	0.1251	1.7266	8.7137	1.9926