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Manual Reference Pages  -  IMAGE::COMPARE::AVG_THRESHOLD (3)

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NAME

Image::Compare::AVG_THRESHOLD - Compare two images by the overall average color difference of their pixels.

CONTENTS

OVERVIEW

See the docs for Image::Compare for details on how to use this module. Further documentation is meant for those modifying or subclassing this comparator. See the documentation in Image::Compare::Comparator for general information about making your own comparator subclasses.

METHODS

accumulate(\@pixel1, \@pixel2, $x, $y) This method is called for each pixel in the two images to be compared. The difference between each pair of pictures is collected and stored for later use by get_result(). This method never short-circuits; when this comparator is used, all pixels are compared, every time.
$cmp->get_result() Returns either the median or the arithmetic mean of the values collected by accumulate(), depending on the average type provided when this object was constructed.

AUTHOR

Copyright 2008 Avi Finkel <avi@finkel.org>

This package is free software and is provided as is without express or implied warranty. It may be used, redistributed and/or modified under the terms of the Perl Artistic License (see http://www.perl.com/perl/misc/Artistic.html)

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perl v5.20.3 IMAGE::COMPARE::AVG_THRESHOLD (3) 2014-12-16

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