getmask-methods {dti} | R Documentation |
Methods for Function ‘getmask’ in Package ‘dti’
Description
Create a mask containing voxel inside the head
Usage
## S4 method for signature 'dtiData'
getmask(object, level = NULL, prop = 0.4, size = 3)
Arguments
object |
an object of class |
level |
S0 intensity value to be used to discriminate between
voxel inside and outside the brain. A good value of level may be determined
using method |
prop |
proportion of voxel in test area with s0 value larger than level needed to decide for a voxel inside the brain |
size |
size of a cube defining a test area |
Value
The function returns an object of class dtiData
.
Methods
- obj = "ANY"
Returns a warning
- obj = "dtiData"
Create a mask containing voxel inside the head
- obj = "array"
Create a mask containing voxel inside the head
Author(s)
Karsten Tabelow tabelow@wias-berlin.de
J\"org Polzehl polzehl@wias-berlin.de
See Also
dtiData
,
readDWIdata
,
dti.smooth
,
sdpar
[Package dti version 1.5.4 Index]