
Number  Image quality measurement  Equation 

1  Mean square error (MSE)  
2  Root mean square error (RMSE)  
3  Peak signaltonoise ratio (PSNR)  
4  Universal image quality index (IQI)  
5  Measure of enhancement (EME)  
6  Pearson correlation coefficient (PCC)  
7  Signaltosignal noise ratio (SNR)  
8  Mean absolute error (MAE)  
9  Structural similarity (SSIM)  
10  Weight peak signaltonoise ratio (WPSNR)  
11  Normalized Hamming distance (NHD)  
12  Bit error rate (BER)  
