dti (version 0.5-4)

plot: Visualizing of dtiIndices

Description

Generic plot function for visualization of objects of class "dtiData", "dtiIndices" and class "dtiTensor"

Usage

plot(x, y, ...)

Arguments

x

object of class dtiIndices, dtiData or dtiTensor

y

not used

...

additional arguments such as slice{Slice number} view{ choose sagittal, coronal, or axial view here} gradient{index of data cube to chose. (for class dtiData) only. Defaults to the first S0 imag

Value

• an image of class adimpro for objects of class "dtiData" or "dtiIndices", invisible(NULL) otherwise.

Details

This function allows to select a slide (2D) by arguments slice and view. For objects of class "dtiData" gradient can be used to specify a specific data cube associated with the index of a gradient direction. For objects of class "dtiData" images are produces that are scaled by the maximal observed image value. This guarantees that subsequently produced images are on a comparable grey scale. The resulting image is returned.

For objects of class "dtiTensor" the tensor itself, fractional anisotropy (FA), mean diffusivity (MD) and a color coded anisotropy map are provided. NULL is returned. For objects of class "dtiIndices" color coded anisotropy maps are produced depending on the specification in method. The resulting image is returned.

References

K. Tabelow, J. Polzehl, H.U. Voss, and V. Spokoiny. Diffusion Tensor Imaging: Structural adaptive smoothing, NeuroImage 39(4), 1763-1773 (2008).

http://www.wias-berlin.de/projects/matheon_a3/

See Also

dtiIndices, dtiData, dtiTensor

Examples

demo(dti_art)