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PIXHIST(1)			    BRL-CAD			    PIXHIST(1)

NAME
       pixhist - display a histogram of	a color	pix file on a framebuffer

SYNOPSIS
       pixhist [-v] [file.pix]

DESCRIPTION
       pixhist displays	a histogram of the pixel values	of the given pix(5)
       format file, or,	if no file is specified, will read from	standard
       input. The environment variable FB_FILE is used to select the display
       device (see brlcad(1)). If this variable	is not set, the	default	device
       for your	system will be used.

       The relative frequency is displayed on the x axis scaled	so that	the
       maximum is full screen. The value 0 is at the bottom of the screen, 255
       is at the top. All three	colors will be drawn on	each scan line,	and
       all are scaled by the same factor.  The output is overlaid on whatever
       is currently on the display.

       The -v flag will	output the histogram values on the terminal (standard
       error).

SEE ALSO
       brlcad(1), pixhist3d(1),	pixstat(1), pix(5)

BUGS
       This program assumes it has at least 512	lines in y to work with.

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				  03/02/2021			    PIXHIST(1)

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

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