Residual noise in the I₁ image expressed in contrast with respect to the star after ADI alone (solid lines) and after ASDI (dashed lines). We consider for ASDI the subtraction I_13b. We represent the median, best, and worst curves in the survey (colored curves, see text). We account for self-subtraction from ADI for all curves using synthetic planets, but not from SDI for the ASDI curves (see text).