vcrop.1Vi

Langue: en

Version: 24 April 1993 (ubuntu - 24/10/10)

Section: 1 (Commandes utilisateur)

NAME

vcrop - crop an image

SYNOPSIS

vcrop [-option ...] [infile] [outfile]

DESCRIPTION

vcrop crops a file of images using a cropping rectangle specified by command line options.

COMMAND LINE OPTIONS

vcrop 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 cropped images as a Vista data file.
-top row
Specifies the first (top) row of the cropping rectangle.
-bottom row
Specifies the last (bottom) row of the cropping rectangle.
-left col
Specifies the first (leftmost) column of the cropping rectangle.
-right col
Specifies the last (rightmost) column of the cropping rectangle.
-height nrows
Specifies the height of the cropping rectangle.
-width ncols
Specifies the width of the cropping rectangle.

The cropping rectangle must be unambiguously specified by using any two of -top, -bottom, and -height, plus any two of -left, -right, and -width.

The cropping rectangle may fall partially or completely outside an image it is cropping; in that case, the area outside is filled with zeros.

Input and output files can be specified on the command line or allowed to default to the standard input and output streams.

SEE ALSO

vxcrop(1Vi), VImage(3Vi), Vista(7Vi)

AUTHOR

Ralph Horstmann <horstman@cs.ubc.ca>