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CIEDE2000 CIELAB Colour Difference Calculator
x402
CIEDE2000 CIELAB Colour Difference Calculator is a paid API for AI agents from detect.halowerk.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-11-04).
Computes standardized CIEDE2000 perceptual colour difference scores between pairs of CIELAB colour values.
Price / call$0.003
Success—
StatusUnknown
How this service works
Compute standardized colour difference between supplied CIELAB sample pairs.
Output
Returns a structured artifact containing CIEDE2000 delta-E colour difference scores for each submitted CIELAB pair, quantifying perceptual dissimilarity using the standardized CIE 2000 formula. Higher values indicate greater perceived colour difference.
Example use cases
Print colour quality inspection
“I need to check whether the printed colour [45.2, 12.1, -5.3] is close enough to our reference [44.8, 13.0, -5.0] — can you compute the CIEDE2000 delta-E so I know if it's within tolerance?”
Paint formula matching validation
“We have 5 paint sample pairs from our lab and need to know how perceptually different each sample is from its reference in CIELAB — can you run CIEDE2000 on all five pairs and tell me the delta-E scores?”
Screen calibration colour accuracy check
“After calibrating my monitor, I measured some CIELAB values and want to compare them against the target values. Can you compute the CIEDE2000 colour difference for these pairs: [50,0,0] vs [49.5,0.3,-0.2] and [30,20,10] vs [30.5,19.8,9.9]?”
Technical details
Endpoint
POSThttps://detect.halowerk.com/v1/F-TD2000-GEO-INDUSTRY-B002/cie2000-cielab-complete-perceptual-colour-difference?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a standardized, numerically precise perceptual colour difference metric between CIELAB colour pairs. Prefer CIEDE2000 over older delta-E formulas (CIE76, CIE94) when perceptual uniformity and accuracy matter most, such as in print production, paint matching, display calibration, or colour quality control. Supports up to 32 pairs per call, making it efficient for small batch comparisons.
Side effects
- Invalid CIELAB array length (must be exactly 3 values per colour)
- Too many pairs submitted (maximum 32 per request)
- Numeric values out of accepted range (-1,000,000 to 1,000,000)
- Missing required 'claim' field in the ciede object
- Malformed artifact structure causing schema validation failure
- Payment authorization failure via x402 protocol
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| artifact | object |
Tags
x402
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