he(9) plan9 man page | unix.com

HE(9.1) 																   HE(9.1)

NAME
       he - histogram equalization

SYNOPSIS
       fb/he [ input ]

DESCRIPTION
       He  reads a picture file (default standard input) and maps its pixel values monotonically to make their histogram as even as possible.  The
       resulting picture file is written to standard output.

SOURCE
       /sys/src/fb/he.c

SEE ALSO
       picfile(9.6)

																	   HE(9.1)