Radial Profile Plot Radial Profile Plot
The Radial Profile Plot shows the luminance of all pixels around a point. Optionally, Mira can fit a Gaussian + Constant model to the radial profile. This results in a measurement of the Full Width at Half Maximum (FWHM) of the object where the plot is centered. From the Gaussian + Constant fit, Mira also reports the background value far from the Gaussian profile and the peak value of the profile.
Move the center of the Image Cursor to the point at which to make the plot. If using the centroid option in the FWHM Preferences, you need only to move the Image Cursor to within a few pixels of the target position.
Use the Plot > Radial Profile menu
command or click the
button.
The Radial Profile Plot and FWHM measurement are configured using the FWHM Preferences page of the Mira Preferences dialog.
Plotting commands, Column Profile Plot, Row Profile Plot, Line Profile Plot, Plot Attributes, Plot Coordinate Systems, Plot Attributes, FWHM Preferences Page, FWHM Measurement