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vflip.1Vi

NAME

vflip - flip an image horizontally and/or vertically

SYNOPSIS

vflip [-hor] [-vert] [-option ...] [infile] [outfile]

DESCRIPTION

vflip flips images horizontally and/or vertically.

A horizontal flip exchanges the left and right sides of an image. A vertical flip exchanges the top and bottom.

COMMAND LINE OPTIONS

vflip accepts the following options:

-help

Prints a message describing options.

-in infile

Specifies a Vista data file containing the input images.

-out outfile

Specifies where to write the flipped images as a Vista data file.

-horizontal

Specifies that a horizontal flip should be performed.

-vertical

Specifies that a vertical flip should be performed.

If both -horizontal and -vertical are specified, the horizontal flip is performed first. If neither is specified, the images are nevertheless flipped horizontally.

SEE ALSO

vrotate(1Vi), vtranspose(1Vi), VImage(3Vi), Vista(7Vi)

AUTHOR

Daniel Ko <ko@cs.ubc.ca>