Table 4 Simulation data for the test image #13, noise model ( 1), PSNR-HVS-M metric

${\mathbf{\sigma }}_{\mathsf{si}}^{\mathbf{2}}$

MSE_inp

PSNR-HVS-M (δ _V  = -1, δ _k  = -1)

PSNR-HVS-M (δ _V  = -0, δ _k  = -0)

max_{PSNR - HVS - M}

δ _{V maxvis}

δ _{k maxvis}