Research Article

A Regular -Shrinkage Thresholding Operator for the Removal of Mixed Gaussian-Impulse Noise

Table 1

Numerical results by the removal of MGRV, measured by PSNR and FSIM.

Noise levelIndexesMethodsCoastguardFlowerNews

PSNRVBM3D28.7519.6230.36
RPCA30.7522.1133.49
-28.4919.4528.40
Ours31.0723.0134.86

PSNRVBM3D27.3718.7228.10
RPCA28.9819.6630.24
-26.1518.1225.56
Ours29.5821.4131.32

PSNRVBM3D25.5617.9725.64
RPCA25.6918.2326.34
-23.0616.6624.20
Ours27.1719.3027.41

FSIM ()VBM3D87.7181.6495.52
RPCA90.0187.5796.47
-91.3584.9490.11
Ours92.0492.1496.35

FSIM ()VBM3D82.2475.9092.74
RPCA89.3279.9393.47
-84.3379.2587.10
Ours90.1387.5894.06

FSIM ()VBM3D77.1970.4289.18
RPCA86.6974.3088.35
-79.4773.3582.41
Ours87.8277.0989.48