Images of the two asymmetric components appearing in the final coronagraphic image shape in presence of horizontal tip-tilt aberration. Positive tip-tilt amplitude induces a shift of the star image towards the right. Left: A_circcosψ, contribution of the circular non-obstructed pupil. Right: A_obsccosψ, contribution of the central obstruction. The circles delimiting the inner and outer regions have a radius of 1.6 λ/D_L and 2.7 λ/D_L. A comparison of the horizontal profiles of these images is displayed in Fig. 6 of Huby et al. (2015).