pnmflip Man page

pnmflip General Commands Manual pnmflip

NAME

pnmflip – perform one or more flip operations on a portable anymap

SYNOPSIS

pnmflip [-leftright|-lr] [-topbottom|-tb] [-transpose|-xy] [-rotate90|-r90|-ccw ] [-rotate270|-r270|-cw ] [-rotate180|-r180] [pnm‐
file]

DESCRIPTION

Reads a portable anymap as input. Performs one or more flip opera‐
tions, in the order specified, and writes out a portable anymap.

OPTIONS

The flip operations available are: left for right (-leftright or -lr);
top for bottom (-topbottom or -tb); and transposition (-transpose or
-xy). In addition, some canned concatenations are available: -rotate90
or -ccw is equivalent to -transpose -topbottom; -rotate270 or -cw is
equivalent to -transpose -leftright; and -rotate180 is equivalent to
-leftright -topbottom.

All flags can be abbreviated to their shortest unique prefix.

SEE ALSO

pnmrotate, pnm(5)

AUTHOR

Copyright (C) 1989 by Jef Poskanzer.

25 July 1989 pnmflip

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