IREVX-Reverse an image (or spectrum) in the X-direction

Description:

The data are reversed in X. The result is an image where the left and right have changed places.

Parameters:

IMAGE

Name of image to be reversed.

OUTPUT

Name of resulting image.

See also:

FIGARO: IREVY, IROT90.
KAPPA: FLIP, ROTATE, TRANSFORMER.

Source comments:

 I R E V

 Figaro routine to reverse an image (or a spectrum, which
 is treated as an image with one dimension 1).  The reversal
 is in the X-direction or the Y-direction.

 Command parameters -

 IMAGE    (Character) The name of the file containing the image.
          The data and error components are reversed; the quality
          component is reversed implicitly by internally using
          flagged values; the x-axis or y-axis data
          component is reversed if it contains anything other than
          just the bin numbers.

 OUTPUT   (Character) The name of the result of the operation.
          This can be the same as IMAGE, in which case the
          operation is performed in situ.

 Command keywords - None

 User variables - None

                                     KS / CIT 20th July 1983