function fwhm
Returns the second order moment of X centered at [XCENTER, YCENTER] within RADIUS, which corresponds to the FWHM at that location. The parameter RADIUS is optional. If skipped, a default of 5 pixels will be used.
Syntax
result = fwhm(X, XCENTER, YCENTER [, RADIUS])
Arguments
| X: | A matrix. |
| XCENTER: | An integer number. |
| YCENTER: | An integer number. |
| RADIUS: | An integer number. |