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Partial M-cone anomaly (deuteranomaly). Compare models, inspect xy shifts & confusion axis, measure ΔE76 & ΔE2000, and simulate images with tunable anomaly severity.

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Base color
Model & settings
Anomaly severity 50%
Image simulation
JPG/PNG (max 1200×1200). Simulated canvas next to original.
Research notes
Deuteranomaly is an anomalous colour-vision deficiency caused by a partial shift in M-cone sensitivity rather than complete cone loss.
  • Brettel models confusion lines geometrically.
  • Viénot applies linearized LMS projection.
  • Machado-like blends severity continuously.
This lab allows smooth severity ramps and model comparison to illustrate how partial M-cone dysfunction alters colour relationships in UI and imagery. Not a clinical diagnostic.
Swatches — Reference vs Deuteranomaly
Reference
HEX: — • RGB: — • xy: —
Deuteranomaly
HEX: — • RGB: — • xy: —
ΔE76
—
ΔE2000
—
Deep preview
Reference
Simulated
Chromaticity (CIE xy)
Confusion line
Deutan confusion point: —
Image simulation

Models operate in linear sRGB. ΔE2000 computed locally. Chromaticity visualizes D65 xy shifts and the deutan confusion axis for explanatory purposes.

Cone channel weights