fslcog | R Documentation |
Find Center of Gravity of Image from FSL
fslcog(img, mm = TRUE, verbose = TRUE, ts = FALSE)
img |
Object of class nifti, or path of file |
mm |
Logical if the center of gravity (COG) would be in mm (default |
verbose |
(logical) print out command before running |
ts |
(logical) is the series a timeseries (4D), invoking |
Vector of length 3 unless ts option invoked
FSL uses a 0-based indexing system, which will give you a different
answer compared to cog
, but fslcog(img, mm = FALSE) +1
should be relatively close to cog(img)
if (have.fsl()){ x = array(rnorm(1e6), dim = c(100, 100, 100)) img = nifti(x, dim= c(100, 100, 100), datatype = convert.datatype()$FLOAT32, cal.min = min(x), cal.max = max(x), pixdim = rep(1, 4)) fslcog(img) }
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