Algorithm | Stats | Band | ||||
---|---|---|---|---|---|---|
NIR | R | G | B | |||
Precorrected | Ori | mean | 13340.19 | 8434.89 | 9639.64 | 277.14 |
σ | 2070.84 | 3007.36 | 1579.32 | 533.12 | ||
cv | 15.52 | 35.65 | 16.38 | 192.37 | ||
Corrected | cosine correction | mean | 14757.97 | 9210.36 | 10686.45 | 280.60 |
R | 0.69 | 0.29 | 0.65 | 0.15 | ||
σ | 3688.53 | 3444.89 | 2992.48 | 540.96 | ||
cv | 24.99 | 37.40 | 28.00 | 192.79 | ||
cvdifference | −9.47 | −1.75 | −11.62 | −0.42 | ||
improved cosine correction | mean | 13061.56 | 8196.82 | 9467.50 | 258.26 | |
R | 0.65 | 0.14 | 0.60 | |||
σ | 2239.93 | 2773.34 | 1798.05 | 500.44 | ||
cv | 17.15 | 33.83 | 18.99 | 193.77 | ||
cvdifference | −1.63 | 1.82 | −2.61 | −1.40 | ||
Minnaert correction | mean | 13929.20 | 8749.86 | 10073.39 | 278.58 | |
R | 0.24 | 0.28 | 0.16 | |||
σ | 2019.77 | 2899.01 | 1615.29 | 536.34 | ||
cv | 14.50 | 33.13 | 16.04 | 192.53 | ||
cvdifference | 1.02 | |||||
modified Minnaert correction | mean | 13542.25 | 8549.51 | 9819.09 | 276.68 | |
R | 0.08 | 0.16 | ||||
σ | 1764.99 | 2921.02 | 1603.82 | 534.63 | ||
cv | 13.03 | 34.17 | 16.33 | 193.23 | ||
cvdifference | 1.49 | 0.05 | −0.86 | |||
two-stages normalization | mean | 13061.56 | 8196.82 | 9467.50 | 258.26 | |
R | 0.66 | 0.14 | 0.60 | |||
σ | 2239.93 | 2773.34 | 1798.05 | 500.44 | ||
cv | 17.15 | 33.83 | 18.99 | 193.77 | ||
cvdifference | −1.63 | 1.82 | −2.61 | −1.40 |