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.\" Hey, EMACS: -*- nroff -*-
.TH INVERT_RAW_IMAGE 1
.SH NAME
invert_raw_image \- invert 2D image along either or both axes
.SH SYNOPSIS
.B invert_raw_image
.BI xsize
.BI xsize
.BI [bytesperpixel]
.SH DESCRIPTION
.B invert_raw_image
reads an image from standard input and copies it to standard
output, inverting along either or both dimensions according
to the arguments.
The parameter
.BI xsize
specifies the number of pixels in the x-direction. Use a negative
number to flip the image along this axis. Ditto for
.BI ysize.
The number of bytes per pixel defaults to 1 if not specified.
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