Color-coded image of the Hα intensity flux, on a logarithmic scale of 10^-16 erg s^-1 cm^-2 arcsec^-1units, corresponding to NGC 2347 (the galaxy shown in Fig. 11). The contours represent the flux intensity in the V-band, extracted from the datacube the datacube, at two intensity levels, 0.2 × 10^-17 erg s^-1 cm^-2 arcsec^-1 (corresponding to ~3σ detection limit in the continuum) and 15 × 10^-17 erg s^-1 cm^-2 arcsec^-1, included to illustrate the location of the center of the galaxy. The white ellipse indicates the location of the knee/peak in the radial abundance shown in Fig. 11.