[magick-users] Unrecognized attribute `normalize'

[Mark]

Hello,

I'm on an older Image::Magick install (6.0.6); and I get the following
error when doing this:

$image->GetPixels (map => 'r', geometry => $Geometry, normalize => 'true')

Error:

Exception 410: unrecognized attribute `normalize' at ./test2.pl line 264.

The error message itself is clear, of course. But can I skip 'normalize'
to get a mean color? I'm moving a site to a different hosting company (so
I cannot upgrade Image::Magick in this instance).

Thanks