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