Mathematical Problems in Engineering / 2018 / Article / Tab 3

Research Article

Image Denoising Algorithm Combined with SGK Dictionary Learning and Principal Component Analysis Noise Estimation

Table 3

Denoising results of two algorithms for 12 images.

ImageGuessed noise value PSNR of SGKPCA estimated value PSNR of PCA + SGK

Barbara12.1531.58263.2540.8875
Boat20.0231.08774.9636.9938
Bridge29.7824.75228.6732.1713
Cameraman35.1127.593510.2233.7171
Couple30.4526.194312.3032.2721
Fingerprint20.1028.006315.0629.7811
Flintstones4.9823.449219.1029.0998
Hill5.2322.511920.2129.9451
House10.0022.828022.5832.4558
Lena15.1523.783024.3430.8314
Man15.5021.837628.0428.3323
Peppers18.2422.497330.3828.7696