Ratio between the injected and recovered flux density as a function of measured S/N (see Sect. 3.9). Upper left, upper right, lower left, and lower right panels: results obtained for the 2D-fit, aperture, 2 σ-clipped, and peak photometry, respectively. The solid lines indicate the median and the shaded areas are the 1-σ contours. Various colors (blue, green, yellow, and red) are used to indicate the various sizes used (FWHM = 0, 0.333, 0.666, and 1 arcsec, respectively). The dashed horizontal line indicate the one-to-one relation.