vshrink(1)

PROGRAM
vshrink - Shrink an image by skipping pixels (subsampling)

SYNTAX

vshrink

-i  input image

-o  output (shrunk image)

[-s]
    shrink scale factor

[-V]
    Gives the version for vshrink

[-U]
    Gives the usage for vshrink

[-P]
    Prompts for command line options

[-A [file1]]
    Creates the answer file called vshrink.ans or file1

[-a [file1]]
    Uses vshrink.ans or file1 as the answer file

DESCRIPTION
vshrink decreases the size of an image by skipping to every s'th pixel where s is the scale argument. The resultant image will be 1/s the size of the original image.

The scale factor must be a positive, non-zero number.

REQUIRED ARGUMENTS

-i  type: infile
    desc: input image

-o  type: outfile
    desc: output (shrunk image)

OPTIONAL ARGUMENTS

-s  type: integer
    desc: shrink scale factor
    default: 2
    bounds: 2 < [-s] < 2000

EXAMPLES
vshrink -i feath.xv -o feath.small.xv -s 16

shrinks image "feath.xv" by a factor of 16.

SEE ALSO
intro(1), verror(3), vgparms(3), vutils(3), lvshrink(3) vexpand(1), vresize(1)

RESTRICTIONS
vshrink does not work on COMPLEX data types. vshrink does not work on explicit location data.

COPYRIGHT
Copyright 1991, University of New Mexico. All rights reserved.