Table 1: Comparison of noise detectors in CR.

Noise ratioROADROLDRORDDARD

Salt-and-pepper noise
10%99.48%99.37%99.77%99.87%
20%98.75%98.63%99.44%99.73%
30%97.15%96.74%98.53%99.58%
40%93.21%92.65%95.86%99.16%
50%83.58%83.75%86.01%98.89%

Random-valued impulse noise
10%97.25%97.38%97.71%97.56%
20%94.59%94.83%95.68%95.57%
30%92.54%92.88%93.71%93.54%
40%90.62%91.04%91.75%91.53%
50%88.77%89.31%89.37%88.87%

Mixed impulse noise
10%97.26%97.40%97.87%97.57%
20%94.51%94.77%95.65%95.50%
30%92.06%92.47%93.48%93.36%
40%89.51%90.11%90.81%90.77%
50%86.53%87.52%87.21%87.28%