Display Color Gamut Coverage VR Calculator
Actualprecomputedpolygon INTERSECTION area/reference area, not entire display gamut area/reference falsely called coverage. Samechromaticityplane/intersection externally independently resolved.
Description
Gamut coverage compares the intersection with a reference gamut to the reference area.
Gamut coverage compares the intersection with a reference gamut to the reference area.1
Both areas must use the same chromaticity plane and an independently computed intersection. The calculation and input requirements are explained below.
When to use Display Color Gamut Coverage VR Calculator
Enter a nonnegative independently computed intersection area and positive matched reference-gamut area.
How to use Display Color Gamut Coverage VR Calculator and how it works
- Prepare the measurements or independently established model inputs described below, with matching units and observation scope.
- Enter the required fields and run Display Color Gamut Coverage VR Calculator.
- Read the result fields using the formula, output units, signs and ordering explained below.
- Correct any rejected inputs and rerun; interpret the result within the stated model and its assumptions.
| Input field | Meaning | Value type | Requirement |
|---|---|---|---|
| actualIndependentlyComputedGamutIntersectionArea | Actual Independently Computed Gamut Intersection Area. Use the units and matching context stated in the calculation below. | number | Required; nonnegative; finite; other constraints below |
| callerMatchedReferenceGamutArea | Caller Matched Reference Gamut Area. Use the units and matching context stated in the calculation below. | number | Required; strictly positive; finite; other constraints below |
Enter a nonnegative independently computed intersection area and positive matched reference-gamut area. The intersection cannot exceed the reference. Return the coverage percentage; polygon intersection and display calibration occur outside the tool.
coveragePercent=100*intersectionArea/referenceArea Apply the input ordering, units and branch conditions stated above.
| Output field | Meaning | Value type |
|---|---|---|
| result | Object containing the calculated or selected fields below. | object |
| result.value | Numeric result under the formula and output units explained above. | number |
{
"input": {
"actualIndependentlyComputedGamutIntersectionArea": 2,
"callerMatchedReferenceGamutArea": 4
},
"output": {
"result": {
"value": 50
}
}
}Limitations and assumptions
The calculation uses the supplied observations and model inputs. It does not collect measurements, select a reference population or coefficient, or establish that the model applies to the actual case. The stated branch conditions and output units remain part of the result.
All fields require explicit values. Unexpected fields, wrong types, nonfinite numbers and sparse arrays are rejected. Alignment, bounds and supported-token rules are explained above; extremely large inputs or nonfinite results can also fail. Input errors differ from successful false comparisons, unavailable-domain flags and empty match lists.
Alternative or Complementary methods
Use Mura Uniformity Percentage Calculator for a complementary operation: Display luminance uniformity compares measurements from a matched field.
Use Mura Correction Factor Calculator for a complementary operation: A flat-field correction gain scales an observed pixel response toward a target luminance.
References
Similar or alternative tools
- Mura Uniformity Percentage Calculator
Display luminance uniformity compares measurements from a matched field.
- Mura Correction Factor Calculator
A flat-field correction gain scales an observed pixel response toward a target luminance.