vscale(1)

PROGRAM
vscale - Multiply (scale) an image by a constant.

SYNTAX

vscale

-i  input image

-o  resulting output image

-s  multiply image by scale factor

[-V]
    Gives the version for vscale

[-U]
    Gives the usage for vscale

[-P]
    Prompts for command line options

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

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

DESCRIPTION
vscale performs a simple scaling of the input image to obtain the output image. An input pixel is just multiplied by a constant and the assigned to the output, with max/min clipping if required.

This routine is really just a front-end for libvconvert(3).

REQUIRED ARGUMENTS

-i  type: infile
    desc: input image

-o  type: outfile
    desc: resulting output image

-s  type: float
    desc: multiply image by scale factor

OPTIONAL ARGUMENTS
none

EXAMPLES
vscale -i input.image -o output.image -s 2

This multiples each pixel in input.image by 2 and places the result in output.image.

SEE ALSO
intro(1), verror(3), vgparms(3), vutils(3) vconvert(1), lvconvert(3)

RESTRICTIONS
vscale will not operate on transform input files.

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