Top panels: IFS-based Hα maps, in units of 10^-16 erg s^-1 cm^-2 arcsec^-2, derived for two representative galaxies of the sample (color images), together with the detectedH iiregions shown as black segmented contours. Bottom panels: radial distribution of the oxygen abundance derived for the individualH iiregions with abundace errors below 0.15 dex, as a function of the deprojected distance (i.e., corrected for inclination), normalized to the effective radius, for the same galaxies. The size of the circles is proportional to the Hα intensity.