algorithms.interpolation¶

Module: `algorithms.interpolation`¶

Inheritance diagram for nipy.algorithms.interpolation:

Image interpolators using ndimage.

class nipy.algorithms.interpolation.ImageInterpolator(image, order=3, mode='constant', cval=0.0)¶

Bases: object

Interpolate Image instance at arbitrary points in world space

The resampling is done with scipy.ndimage.

__init__(image, order=3, mode='constant', cval=0.0)¶

Parameters:

imageImage: Image to be interpolated.
orderint, optional: order of spline interpolation as used in scipy.ndimage. Default is 3.
modestr, optional: Points outside the boundaries of the input are filled according to the given mode (‘constant’, ‘nearest’, ‘reflect’ or ‘wrap’). Default is ‘constant’.
cvalscalar, optional: Value used for points outside the boundaries of the input if mode=’constant’. Default is 0.0.

evaluate(points)¶

Resample image at points in world space

Parameters:

pointsarray: values in self.image.coordmap.output_coords. Each row is a point.

Returns: