I have received a number of images of the occultation and in a few cases the observer has selectively brightened Mars (for the reason stated above) and said so. This, provided it is stated, is no worse than if one did the same thing with a drawing. It seems to me that all the observers with whom I correspond do state clearly if they have modified an image. Because emails are not always kept, any modification should be stated UPON the image. The problem of surface brightness is of course more acute with Saturn when it is occulted by the Moon.
By the way, I am hoping I will receive all those nice images from all those who have posted on their member pages but did not formally send the image to the Mars (or Lunar!) Sections. Then your work will be acknowledged online and in any later report in print in the Journal.
Richard McKim