NNSample3d.c File Reference

Functions
VImage	VNNSample3d (VImage src, VImage dest, VImage transform, float b0, float r0, float c0, int dst_nbands, int dst_nrows, int dst_ncolumns)
	Resample a 3D image using nearest neighbour interpolation.

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Detailed Description

Geometric transformations using nearest neighbour interpolation.

This file contains functions for resampling and 3D rotations. The transformation equation is:

y = A(x-x0) + b

where x,x0,b,y are 1x3 vectors and A is a 3x3 matrix. The vector x0 can be used to specify a position that remains unchanged by the transformation.

Author:

Gabriele Lohmann, MPI-CBS

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Function Documentation

VImage VNNSample3d	(	VImage	src,
		VImage	dest,
		VImage	transform,
		float	b0,
		float	r0,
		float	c0,
		int	dst_nbands,
		int	dst_nrows,
		int	dst_ncolumns
	)

Resample a 3D image using nearest neighbour interpolation.

Parameters:

	src	input image (any repn)
	dest	output image (any repn)
	transform	4x3 transformation image (float or double repn). The first column of <transform> contains the translation vector. The remaining three columns contains the 3x3 linear transformation matrix.
	b0	slice address that remains fixed
	r0	row address that remains fixed
	c0	column address that remains fixed
	dst_nbands	number of output slices
	dst_nrows	number of output rows
	dst_ncolumns	number of output columns