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government organization in the United States.
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Definitions of true/false positive/negative
| Detected pixel | ||
|---|---|---|
| Actual pixel | Lesion | Background |
| Lesion | True positive (TP) | False negative (FN) |
| Background | False positive (FP) | True negative (TN) |
‘Actual’ and ‘detected’ pixels refer to a pixel in the manual border and the corresponding pixel in the automatic border, respectively.
