[magick-users] using CompareLayers in PerlMagick

[Martin Radile]

Hi,

I would like to use the method CompareLayers in PerlMagick. The 
documentation says that it return the "returns the maximum bounding 
region of any pixel differences it discovers".

I don't find any further documentation for the method and my trials did 
not produce the expected result. Can anyone give advise how to use the 
method?

Thanks,

Martin