Table 2 Analysis of performance indexes of different enhancement methods

From: Localized fading feature extraction method of ancient ceramic decoration

Method type

Enhanced indicators

PSNR

SSIM

RMSE

IFC

Method of this paper

21.82

0.98

8.54

0.53

Two-dimensional adaptive gamma correction

18.91

0.90

9.40

0.57

Fourier transform homomorphic filtering

14.43

0.87

15.05

0.60

Nonlocal mean filtering

21.40

0.85

6.16

0.74

  1. The data marked in bold indicates better values.