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Scatterplots showing the correlation of color values between Nix Pro Color Sensor and Minolta Chroma Meter (n = 95), indicating a strong positive correlation (rho = 0.75; P < 0.001) of L* values (lightness). The a* values (redness) also demonstrated a strong correlation (r = 0.72; P < 0.001). Correlation was the highest for b* value (yellowness) (rho = 0.80; P < 0.001).
