Automatic Signature Verifier Using Gaussian Gated Recurrent Unit Neural Network

Table 3

Analytical comparison of proposed IMF on the basis of (a) PSNR, (b) MSE, and (c) SSIM.

Name of filter	PSNR	MSE	SSIM
Proposed IMF	39.0921	0.0005655	0.9722930
Median filter	35.2056	0.0010170	0.9625889
Bilateral filter	23.0475	0.0049637	0.7584637
Guassian filter	27.9207	0.0073563	0.8520542