Effect of different combinations of PSF subtraction techniques in RSM on the fitted lognormal distributions, detection thresholds, and contrast curves. Top left : difference of lognormal fit across different PSF subtraction techniques with colors ranging from dark violet for multi combinations to yellow for singular combinations. Top right : distribution of the 3 × 10⁻⁷ FAP under lognormal distribution for the different combinations across all separations. Bottom left : contrast curve delivered by the different combinations with 50% completeness.