SPECTRUM

##
SPECTRUM

            [GREG3\]SPECTRUM I [J [K]]
                or
            [GREG3\]SPECTRUM OutSpec InCube [Mask] [/CORNER Imin Imax Jmin Jmax]
          [/PLANE First Last]  /MEAN  or  /SUM

        SPECTRUM I [J [K]]
        Extract a spectrum from an image according to the following numbering:
            Spectrum (l) = Image (l,i,j,k)
        for a 4-dimensional image. The spectrum is loaded into the  X,Y  buffers
        of GreG. It can be processed later by the standard commands LIMITS, CON-
        NECT, CURVE and so on.

        The alternate syntax, used if any option is  present,  computes  in  the
        output variable OutSpec a mean or integrated spectrum over the specified
        region of the input Image variable InCube, using the current Greg  poly-
        gon and the specified Mask if any.

Subsections

- SPECTRUM /CORNER
- SPECTRUM /MEAN
- SPECTRUM /PLANE
- SPECTRUM /SUM