LANDMARK_WARP(1)

NAME
landmark_warp - warp an image using point landmarks

SYNOPSIS

landmark_warp [options]

DESCRIPTION

The landmark_warp executable performs registration by matching fiducials on reference and test images. The list of possible options can be seen by typing:

        landmark_warp --help

The command line usage is given as follows:

        Usage: landmark_warp [options]
        Options:
         -a, --algorithm <arg>         RBF warping algorithm {tps,gauss,
                                        wendland}
         -d, --default-value <arg>     Value to set for pixels with unknown
                                        value
             --dim <arg>               Size of output image
                                        in voxels "x [y z]"
         -F, --fixed <arg>             Fixed image (match output size to this
                                        image)
         -f, --fixed-landmarks <arg>   Input fixed landmarks
         -h, --help                    Display this help message
         -I, --input-image <arg>       Input image to warp
         -v, --input-vf <arg>          Input vector field (applied prior to
                                        landmark warping)
         -m, --moving-landmarks <arg>
                                       Output moving landmarks
         -N, --numclusters <arg>       Number of clusters of landmarks
             --origin <arg>            Location of first image voxel
                                        in mm "x y z"
         -O, --output-image <arg>      Output warped image
         -L, --output-landmarks <arg>
                                       Output warped landmarks
         -V, --output-vf <arg>         Output vector field
         -r, --radius <arg>            Radius of radial basis function
                                        (in mm)
             --spacing <arg>           Voxel spacing in mm "x [y z]"
         -Y, --stiffness <arg>         Young modulus (default = 0.0)

Options "-a", "-r", "-Y", "-d" are set by default to:

        -a=gauss          Gaussian RBFs with infinite support
        -r=50.0           Gaussian width 50 mm
        -Y=0.0            No regularization of vector field
        -d=-1000          Air

You may want to choose different algorithm:

        -a=tps            Thin-plate splines (for global registration)
        -a=wendland       Wendland RBFs with compact support (for
                           local registration)

In the case of Wendland RBFs "-r" option sets the radius of support.

Regularization of vector field is available for "gauss" and "wendland" algorithms. To regularize the output vector field increase "-Y" to '0.1' and up with increment '0.1'.

AUTHOR
Plastimatch is a collaborative project. For additional documentation, please visit http://plastimatch.org. For questions, comments, and bug reports, please visit http://groups.google.com/group/plastimatch.

COPYRIGHT
Plastimatch development team (C) 2010-2015. You are free to use, modify, and distribute plastimatch according to a BSD-style license. Please see LICENSE.TXT for details.