This extracts a rotational averaged intensity profile from the front
most image and displays it as a separate profile image. At the same
time an ROI is added to the profile, and its limits are represented as
two concentric circles in the source image. The ROI and the rings are
interactively linked, i.e. changing the diameters of the rings shifts
the ROI in the profile and vice versa. The concentric rings can also be
shifted on the image to define the new center for the rotational
profile. This invalidates the markers and the profile, indicated by a
color changes. Data changes in the source image will also invalidated
the profile. To update the profile, press the key with
either the profile or the source image being active.
If the CTRL key is kept pressed during movement of the rings (or data
update), the profile is automatically updated.
Pressing the key, closing the profile image, or deleting any of
the markers will stop the tool.