Imager::Color checks when deciding whether to skip testing it
http://rt.cpan.org/Ticket/Display.html?id=26064
+ - use a convolution kernel size based on the stddev rather than a
+ fixed size when performing a gaussian blur
+ http://rt.cpan.org/Ticket/Display.html?id=25645
+
Imager 0.56 - 1 Apr 2007
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