bwhist — display a histogram of a black and white bw file on a framebuffer
displays a histogram of the pixel values in a
format file. If a file is not given, standard input is read.
The output will be displayed on the frambuffer selected via the
environment variable (see
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.
flag will output the histogram values on the terminal.
This software is Copyright (c) 1989-2016 by the United States Government as represented by U.S. Army Research Laboratory.