ITK metrics direct application

[dzenanz (Dženan Zukić)]

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Image registration metric derivative

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Metric to evaluate the registration accuracy on 3D MRI

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New to ITK - moving from ImageJ macros - SimpleITK arithmetic Q

Thanks for the reply Dženan, When I take a single image and translate/rotate a copy, then run registration, the mean square reported goes from a high at the start of 650,000 to a fitted value of 300,000. You can see this in the images below, showing the metric as well as the fitted image overlaid the “original”. So these images are identical - except for translation/rotation. So I would expect that a mean squares metric would be essentially zero. (assuming its a mean squared difference that…