Contrast comparison at 5σ between PACO, TLOCI, and PCA for IRDIS for the 24 science stars considered in this paper. A flat prior was used for PACO. Dashed lines show the 95% completeness interval. The grey area represent the coronographic mask. Contrast curves provided by PCA and TLOCI do not strictly correspond to a 5σ false alarm rate contrarily to the contrast curves of PACO. The achievable contrasts are thus significantly over-optimistic for PCA and TLOCI (see discussion in the main text).