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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)