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Partial S-cone dysfunction (tritanomaly). Compare models (Brettel, Viénot, Machado-like), tune severity, inspect chromaticity & confusion axis, and measure ΔE differences across modes.

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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
Tritanomaly represents a partial loss or shift in S-cone sensitivity. Brettel and Viénot are analytic projections derived from cone response theory; the Machado-like model blends identity and dichromatic projection to provide a smooth severity ramp. ΔE2000 is included for perceptual accuracy.
Swatches — Reference vs Tritanomaly
Reference
HEX: — • RGB: — • xy: —
Tritanomaly
HEX: — • RGB: — • xy: —
ΔE76
—
ΔE2000
—
Deep preview
Reference
Simulated
Chromaticity (CIE xy)
Confusion line
Tritan confusion point: —
Image simulation

Models operate on linear sRGB. ΔE2000 is computed locally. Chromaticity illustrates D65 xy shifts and the tritan confusion axis for explanatory visualization. This is an educational simulation, not a clinical diagnostic.

Cone channel weights