NAME

       protate - rotate a RADIANCE picture.

SYNOPSIS

       protate [ -c ][ -r ] input [ output ]

DESCRIPTION

       Protate  rotates  a  RADIANCE  picture  90 degrees.  This is useful for output on hardcopy
       devices with aspect ratios opposite to the  input  picture.   By  default,  the  image  is
       rotated  clockwise.   The  -r  option  may  be  used to rotate the image counter-clockwise
       instead.

       The -c option indicates  that  the  action  is  to  correct  an  improper  original  image
       orientation, thus the recorded scanline ordering should not be changed.

NOTES

       To rotate an image 180 degrees, use pflip(1) with both the -h and -v options.

AUTHOR

       Greg Ward

SEE ALSO

       getinfo(1), pcompos(1), pfilt(1), pflip(1), psign(1), rpict(1)