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PIXSTAT(1)			    BRL-CAD			    PIXSTAT(1)

NAME
       pixstat - list statistics related to a color pix	image

SYNOPSIS
       pixstat [-v] [file.pix]

DESCRIPTION
       Pixstat will take the given pix(5) format file, or read from standard
       in. A collection	of statistics related to the pixel intensities is
       produced	for each color plane (red, green, and blue).  These include:
       The number of pixels (and the square root of this which is the file
       dimensions if square).  The max and min values.	The mean.  The median
       (dividing line where half the pixels are	above this value, half below).
       The mode	(most frequently occurring value) and the number of pixels at
       this value.  The	variance, standard deviation, and skew.

       The -v flag will	also dump a histogram of the pixel values.

METHOD
       Since the pixel values are quantized (each color	having discrete	values
       from 0 to 255), the statistics can be computed from "lump sums" after
       building	a histogram of the input. This results in a fantastic savings
       in computation while also making	a single pass over the input file
       sufficient.

SEE ALSO
       brlcad(1), pixhist(1), bwstat(1), pix(5).

AUTHOR
       BRL-CAD Team

COPYRIGHT
       This software is	Copyright (c) 1989-2013	by the United States
       Government as represented by U.S. Army Research Laboratory.

BUG REPORTS
       Reports of bugs or problems should be submitted via electronic mail to
       <devs@brlcad.org>.

BRL-CAD				  07/08/2017			    PIXSTAT(1)

NAME | SYNOPSIS | DESCRIPTION | METHOD | SEE ALSO | AUTHOR | COPYRIGHT | BUG REPORTS

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