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- function varargout = spm_sample_vol(varargin)
- % Return voxel values from an image volume - a compiled routine
- % FORMAT X = spm_sample_vol(V,x,y,z,hold)
- % V - spm_vol structure
- % x - matrix of x coordinates {voxels}
- % y - matrix of y coordinates {voxels}
- % z - matrix of z coordinates {voxels}
- % hold - interpolation method for the resampling:
- % 0 : Zero-order hold (nearest neighbour)
- % 1 : First-order hold (trilinear interpolation)
- % 2->127 : Higher order Lagrange (polynomial) interpolation
- % using different holds (second-order upwards)
- % -127 - -1 : Different orders of sinc interpolation
- %
- % X - output image
- %
- % FORMAT [X,dX,dY,dZ] = spm_sample_vol(V,x,y,z,hold)
- % Similar to above, except that the derivatives in the three orthogonal
- % directions are also returned.
- %__________________________________________________________________________
- %
- % spm_sample_vol returns the voxel values from an image volume indicated
- % by V at coordinates x,y,z. Values from coordinates outside the image
- % are set to zero. x, y and z must be matrices of the same dimensions.
- %
- % See also: spm_vol.m, spm_slice_vol.m
- %__________________________________________________________________________
- % Copyright (C) 1999-2015 Wellcome Trust Centre for Neuroimaging
- % John Ashburner
- % $Id: spm_sample_vol.m 6340 2015-02-16 12:25:56Z guillaume $
- %-This is merely the help file for the compiled routine
- error('spm_sample_vol.c not compiled - see Makefile')
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