Name
       histog - histogram plotting

Synopsis
       histog [options] image.fits

Description
       histog  computes  the histogram of an image and plot it with gnuplot if
       installed and/or display the resulting histogram  on  stdout.  You  can
       specify  a  pixel range, the sample rate or if you want the histogam to
       be cumulative or not.

Options
       -b bins
              To specify the number of bins used for the histogram. Default is
              the x-size of the image.

       -g     Flag to activate the plotting.

       -c     Flag to be used to have the cumulative histogram computed.

       -i ’man max’
              To specify a pixel value range for the histogram. All the pixels
              are used by default