This program should calculate the sum of the pixels defined by the disk of radius (r) on the displayed image. However, this calculation should be repeated many times for different values of radius (r). I would like to automate this process by creating an appropriate loop, in which would be possible to enter in only time 32 diferents values of (r). As I am not expert in Mathematica, my attempts had failed so far. I would be very grateful for any assistance to it.