WA - Warp a volume

PURPOSE

Three pass three dimensional mesh warping generalized to three dimensions starting from two dimensional algorithm in Wolberg. Works on images and volumes.

USAGE

.OPERATION: WA

.WARP COORDINATES DOC FILE: DOCWARP
[Doc. file needs a comment key: 1 with x, y,& z dimensions of the warping specifications follwed by the image x, y, & z size.e.g.:
; 1 7 666.00 5.0000 5.0000 3.0000 509.00 509.00 175.00
The comment key is followed by x*y*z lines containing the coordinates for input points and corresponding location in the output file.]

.INPUT FILE: VOL001
[Enter name of the input image/volume.]

.OUTPUT FILE: VOL002
[Enter name for output image/volume.]

NOTES

1. The warping coordinates must have each dimension >= 3.

2. Reference: George Wolberg, Digital Image Warping, 1994, ISBN:0818689447 Publisher: IEEE Computer Society Press Los Alamitos, CA, USA (has several bugs in the source code there!)

3. Implemented by: ArDean Leith

4. See Volume Correlation for instructions on how to make a 'WARP COORDINATES DOC FILE' from two similar volumes.

SUBROUTINES

WARP3, AKIMA

CALLER

DRIV2