Manual Reference Pages - IMAGE::COMPARE::THRESHOLD (3)
Image::Compare::THRESHOLD - Compare two images by by a maximum per-pixel
color difference of their pixels.
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.
Initializes the return value.
accumulate(\@pixel1, \@pixel2, $x, $y)
This method is called for each pixel in the two images to be compared. If
the two pixels colors are within the threshold in color difference, then
the method allows processing to continue. Otherwise, this returns a false
value, causing processing to cease and indicating that the two images do
If this method has been called, it means that accumulate() never
short-circuited and therefore none of the pixels in the two images
differ by more than the threshold, so this always returns a true value.
Copyright 2008 Avi Finkel <firstname.lastname@example.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
|perl v5.20.3 ||IMAGE::COMPARE::THRESHOLD (3) ||2014-12-16 |
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