[Magick-bugs] Image Comparing (via "compare" or "convert") returnsdifferent results on ImageMagick 6.3.0 and 6.3.3

[Glenn Randers-Pehrson]

At 08:32 PM 4/30/2007 -0700, Keith Bernstein wrote:

>Is there an explanation for this? Can I just take (e.g.) (8117.97 / 31.5874) 
>and use that to normalize threshold values between
>these two systems?

Interestingly, that ratio works out to almost exactly 257, which would
be the ratop in sample values on a 16-bit build versus an 8-bit build.

Run "convert | head -2" and look at the Q values on the two systems.  One
is probably Q8 and the other Q16.

Glenn