Image reconstruction of the Brγ emission for the combined dataset (AMBER+GRAVITY) and for three different software packages, MIRA, WISARD and BSMEM, from left to right. The image is algorithm dependent, but they all show a similar global orientation of the emission. The resulting image using BSMEM shows an elongated structure around RA offset, Dec offset = (−5, 5), (−5, 5), which is perpendicular to that of the other two software packages. The observed difference is due to the different regularisers and optimisation process available for each algorithm.