SAR K-ARD NRB Quality Assessment — M1: Histogram Uniformity Analysis
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Product/Tile : Tile 12SUC33, acquired 2023-10-08 (12SUC33_20231008013527_K5_ES02_NRB)
Grade        : B

Standard deviation, gamma-naught E (sigma_E)        : 7.726 dB
Standard deviation, gamma-naught T (sigma_T)        : 7.726 dB
Mean terrain slope                                  : 2.012°
Relative difference (sigma_E − sigma_T) / sigma_T   : -0.0001
Basis of grade                                      : The mean terrain slope is 7 degrees or less, and sigma_T exceeds sigma_E by less than 10 percent.

Grading rule: Mean slope > 7°: A if sigma_T is lower than sigma_E by 10% or more; B if lower by less than 10%; C if sigma_T is not lower than sigma_E. Mean slope ≤ 7°: A if sigma_T is lower than sigma_E; B if sigma_T exceeds sigma_E by less than 10%; C if by 10% or more. Not assessable if valid pixels < 5%.
