Description
Require nearInfrared+redEdge nonzero and return ndre=(nearInfrared-redEdge)/(nearInfrared+redEdge).
Precision-agriculture measurements combine spatial cells, sensor clocks, travel speeds, band signals, and application records. A correction or weighted share is meaningful only when coordinate frames, units, timestamps, and coverage bases agree. Supplied calibration and support flags remain distinct from measurements that establish them.
Require nearInfrared+redEdge nonzero and return ndre=(nearInfrared-redEdge)/(nearInfrared+redEdge).
When to use this tool
Use Canopy Ndre One Band Pair Term when you have the stated field, sensor, map, or application records and need this correction or geometric/accounting component.
How to use the tool and how it works
- Enter nearInfrared, redEdge. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read ndre. Use the output convention below.
Require nearInfrared+redEdge nonzero and return ndre=(nearInfrared-redEdge)/(nearInfrared+redEdge).1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| nearInfrared | Near Infrared | Required. Finite number. |
| redEdge | Red Edge | Required. Finite number. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| ndre | Ndre | Required. Finite number. |
{
"input": {
"nearInfrared": 0.6,
"redEdge": 0.2
},
"output": {
"ndre": 0.49999999999999994
}
}Limitations and assumptions
- Band values must use a compatible reflectance scale. Signed bands are accepted and the result is not clamped; the calculation does not perform imagery calibration or crop diagnosis.
- Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Signed zero is exported as zero.
Alternative or Complementary methods
Verify the measurement calibration, coordinate frame, spatial support, and clock convention before combining this term into a map or control workflow. Use a complete equipment or field model when geometric and operating constraints matter.
References
Similar or alternative tools
- Vegetation Index Soil Adjustment Supplied Factor
Require nonnegative suppliedAdjustment and nonzero nearInfrared+red+suppliedAdjustment; return savi=(1+suppliedAdjustment)*(nearInfrared-red)/(nearInfrared+red+suppliedAdjustment).
- Multispectral Band Reflectance Gain Term
Apply an explicit affine band calibration without atmospheric correction or clipping.