Method

PSNA

SSIM

Robert

69.9174

0.7599

Sobel

67.4437

0.6956

Prewitt

66.6276

0.6657

LoG

70.6323

0.7239

Canny

66.3004

0.7563

E-d Sobel

66.1077

0.7491

Grey correlation

66.9534

0.8724

Proposed method

73.0522

0.9746