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Find Center of Gravity of Image, after thresholding
cog(img, thresh = 0, ceil = FALSE, warn = TRUE)
Vector of length 3
Object of class nifti
threshold for image, will find img > 0
img > 0
Run ceiling to force integers (usu for plotting)
ceiling
Produce a warning if the image is empty after thresholding
dims = rep(20, 3) x = array(rnorm(prod(dims)), dim = dims) img = nifti(x, dim= dims, datatype = convert.datatype()$FLOAT32, cal.min = min(x), cal.max = max(x), pixdim = rep(1, 4)) cog(img)
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