Some simple examples and utility functions for resampling.
Resample image to target CoordinateMap
Use a “world-to-world” mapping mapping and spline interpolation of a order.
Here, “world-to-world” refers to the fact that mapping should be a callable that takes a physical coordinate in “target” and gives a physical coordinate in “image”.
Parameters : | image : Image instance
target : CoordinateMap
mapping : callable or tuple or array
shape : sequence of int
order : int, optional
mode : str, optional
cval : scalar, optional
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Returns : | output : Image instance
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Resample source image to space of target image
This wraps the resample function to resample one image onto another. The output of the function will give an image with shape of the target and data from the source.
Parameters : | source : Image
target : Image
order : int, optional
mode : str, optional
cval : scalar, optional
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Returns : | output : Image
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Examples
>>> from nipy.testing import funcfile, anatfile
>>> from nipy.io.api import load_image
>>> aimg_source = load_image(anatfile)
>>> aimg_target = aimg_source
>>> # in this case, we resample aimg to itself
>>> resimg = resample_img2img(aimg_source, aimg_target)