[Insight-users] Normalized correlation and pixel type

[Paolo]

Dear all,
    I have to registrate two stacks of 16-bit gray level images stacks. Accordingly, I choosed an unsigned short pixel type.
I would like to use the normalized correlation metric as metric for my registration, and I was wondering if I would have to convert to a float internal pixel type, like in example 8.5.1 which use mutual information ?
Best, Paolo
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