Unix/Linux Go Back    


CentOS 7.0 - man page for pnminvert (centos section 0)

Linux & Unix Commands - Search Man Pages
Man Page or Keyword Search:   man
Select Man Page Set:       apropos Keyword Search (sections above)


Pnminvert User Manual(0)						 Pnminvert User Manual(0)

NAME
       pnminvert - invert a PNM image

SYNOPSIS
       pnminvert

       [pnmfile]

DESCRIPTION
       This program is part of Netpbm(1)

       pnminvert reads a PNM image as input, inverts it black for white, and produces a PNM image
       as output.

       If the image is grayscale, pnminvert replaces a pixel with one  of  complementary  bright-
       ness,  i.e.  if	the  original pixel has gamma-adjusted gray value G, the output pixel has
       gray value maxval - G.

       If the image is color, pnminvert inverts each individual RGB component the same as  for	a
       grayscale image.

SEE ALSO
       pnm(1)

AUTHOR
       Copyright (C) 1989 by Jef Poskanzer.

netpbm documentation			  08 August 1989		 Pnminvert User Manual(0)
Unix & Linux Commands & Man Pages : ©2000 - 2018 Unix and Linux Forums


All times are GMT -4. The time now is 07:34 AM.