Table 2: Results of encryption of different amount for grayscale SF.GIF and ROAR512.JPG images using small and large keys sizes.

ImageKey sizeAmount %One keyTwo keysThree keys
Cipher-image correlationReconstructed-image correlationCipher-image correlationReconstructed-image correlationCipher-image correlationReconstructed image correlation

1SmallL1 = 250.074623370.999992860.030052240.999992870.005131920.99999287
L2 = 6.250.141514260.999997840.136723530.999997840.04338320.99999784

1LargeL1 = 250.011977780.999992860.006455480.999992870.004955620.99999287
L 2 = 6 . 2 5 0.074380780.999997840.024576480.999997840.006542080.99999784

2SmallL1 = 250.130407710.999998350.058087170.999998360.040309190.99999836
L2 = 6.250.243793690.999999490.156406780.999999490.070572240.99999949

2LargeL1 = 250.011425040.999998350.006680930.999998360.001211700.99999836
L2 = 6.250.104559030.999994910.079159130.999994920.021478760.99999492