Table 2.

Metric measures for Eggs (grayscale).

Evaluation Metrics	ECC with Hill Cipher	ECC with AES	ElGamal with Double Playfair Cipher
Encryption Time (seconds)	0.33418	2.82401	0.18775
Decryption Time (seconds)	0.36932	2.75127	0.17856
Entropy	7.9434	7.99653	7.78708
Mean Squared Error (MSE) in decrypted image	0.0000	0.0000	0.0000
PSNR (dB)	9.45457	9.129	9.36168
NPCR (%)	86.91254	99.60632	94.81812
UACI (%)	26.06152	28.90828	27.91177