From the upper right to down left: Br alpha, 3.88 mu continuum and 2.2 mu images of the central region of M83 taken by the SW channel of CAM (the first two) and the GRLTV respectively.
This image was published in the Astronomy and Astrophysics Letter "ISOCAM 4 micron imaging of the nuclear starburst in M83", Rouan,D. et al.