random transformation matrix

generates a random transformation matrix in ants style. takes an initial transformation, its parameters and a seed that allows repeatability.

randomANTsTransformation(
  loctx,
  transformType = c("Rigid", "Affine", "ScaleShear"),
  sdAffine,
  idparams,
  fixParams,
  seeder,
  idim
)

Arguments

loctx	initial affine transformation to modify
transformType	one of Rigid, Affine and ScaleShear
sdAffine	standard deviation parameter e.g. 0.15
idparams	identity parameters
fixParams	fixed parameters for ANTs or ITK transformation
seeder	random seed
idim	spatial dimension of transformation