corr_setup#
- corr_setup(rfftn, irfftn, template, template_mask, template_filter, target, fast_shape, fast_ft_shape, shared_memory_handler, **kwargs)[source]#
Setup for computing a normalized cross-correlation between a
target
(f), atemplate
(g) giventemplate_mask
(m)\[\frac{CC(f,g) - \overline{g} \cdot CC(f, m)} {(CC(f^2, m) - \frac{CC(f, m)^2}{N_g}) \cdot \sigma_{g}},\]where
\[CC(f,g) = \mathcal{F}^{-1}(\mathcal{F}(f) \cdot \mathcal{F}(g)^*).\]Notes
To be used with
corr_scoring()
.References
[1]Lewis P. J. Fast Normalized Cross-Correlation, Industrial Light and Magic.