vqerr(1)

PROGRAM
vqerr - Compute the quantization error between a quantized image and the original.

SYNTAX

vqerr

-i1 Quantized image

-i2 Original image

-o  Output ASCII File

[-m]
    add operation masking image

[-V]
    Gives the version for vqerr

[-U]
    Gives the usage for vqerr

[-P]
    Prompts for command line options

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

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

DESCRIPTION
vqerr computes the RMS quantization error between a quantized image and the original image.

The first input image is the quantized image and should have maps attached. The data type of the first image should be BYTE or INT. The map should be of the same data type as the data in the second image (the original). The second (original) image should have no maps attached.

The number of columns in the map of the first input image should match the number of bands in the second (original) input image.

REQUIRED ARGUMENTS

-i1 type: infile
    desc: Quantized image

-i2 type: infile
    desc: Original image

-o  type: outfile
    desc: Output ASCII File

OPTIONAL ARGUMENTS

-m  type: infile
    desc: add operation masking image

EXAMPLES
% vgamut -i mandril.rgb.xv -o mandril.quant % vqerr -i1 mandril.quant -i2 mandril.rgb.xv -o -

will quantize the color mandril image and compute the quantization error.

SEE ALSO
intro(1), verror(3), vgparms(3), vutils(3), lvqerr(3) vipl(3),vquant(1),vgamut(1)

RESTRICTIONS
vqerr will not operate on BIT, COMPLEX, or DOUBLE data storage types.

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