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Man Pages


Manual Reference Pages  -  BWHIST (1)

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NAME

bwhist - display a histogram of a black and white bw file on a framebuffer

CONTENTS

SYNOPSIS

bwhist [-v] [file.bw]

DESCRIPTION

Bwhist displays a histogram of the pixel values in a bw(5) format file. If a file is not given, standard input is read. The output will be displayed on the frambuffer selected via the

FB_FILE environment variable (see libfb(3)).

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. The output is overlaid on whatever is currently on the display.

The -v flag will output the histogram values on the terminal.

SEE ALSO

brlcad(1), bwhisteq(1), bwstat(1), bw(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) 1989-2013 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>.

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BRL-CAD BWHIST (1) 04/04/2016

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