Avi Finkel > Image-Compare-0.9 > Image::Compare::THRESHOLD_COUNT

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NAME ^

Image::Compare::THRESHOLD_COUNT - Count the number of pixel pairs in two images that differ by more than a given threshold.

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)

Calls the superclass accumulate to determine if a given pair of pixels are within the disance threshold or not. If they are not, increments a counter.

get_result()

Returns the count of pixels pairs whose difference exceeded the threshold.

setup($img1, $img2)

Sets up the collection variable for the count to be returned.

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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