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BWSTAT(1)			    BRL-CAD			     BWSTAT(1)

NAME
       bwstat -	list statistics	related	to a black and white bw	image.

SYNOPSIS
       bwstat [-v] [file.bw]

DESCRIPTION
       bwstat will take	the given bw(5)	format file, or	read from standard in.
       A collection of statistics related to the pixel intensities is
       produced.  These	include: The number of pixels (and the square root of
       this, yielding the file dimension if it's 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 (have 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), bwhist(1), pixstat(1), bw(5)

AUTHOR
       BRL-CAD Team

COPYRIGHT
       This software is	Copyright (c) 1989-2019	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				  08/27/2021			     BWSTAT(1)

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

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