tend-evecrgb - Man Page
make an RGB volume from an eigenvector and an anisotropy
Synopsis
tend evecrgb -c <evec index> -a <aniso> [-t <thresh>] [-bg <background>] [-gr <gray>] [-gam <gamma>] [-i <nin>] [-o <nout>]
Options
- -c <evec index>
which eigenvector will be colored. “0” for the principal, “1” for the middle, “2” for the minor (unsigned int)
- -a <aniso>
Which anisotropy to use for modulating the saturation of the colors. All the Westin metrics come in two versions. Currently supported:
- “cl1”, “cl2”: Westin’s linear
- “cp1”, “cp2”: Westin’s planar
- “ca1”, “ca2”: Westin’s linear + planar
- “cs1”, “cs2”: Westin’s spherical
- “ct1”, “ct2”: GK’s anisotropy type (cp/ca)
- “ra”: Basser/Pierpaoli relative anisotropy/sqrt(2)
- “fa”: Basser/Pierpaoli fractional anisotropy
- “vf”: volume fraction = 1-(Basser/Pierpaoli volume ratio)
- “tr”: trace
- -t <thresh>
confidence threshold (float) default: “0.5”
- -bg <background>
gray level to use for voxels whose confidence is zero (double) default: “0”
- -gr <gray>
the gray level to desaturate towards as anisotropy decreases (while confidence remains 1.0) (double) default: “0”
- -gam <gamma>
gamma to use on color components (double) default: “1”
- -i <nin>
input diffusion tensor volume; default: “-”
- -o <nout>
output image (floating point) (string) default: “-”