Function shepplogan::shepplogan_modified

pub fn shepplogan_modified(nx: usize, ny: usize) -> Vec<f64>

Modified Shepp-Logan phantom with better contrast

Constructs the modified Shepp-Logan phantom as described in:

Toft, PA, "The Radon Transform - Theory and Implementation", PhD dissertation, Departement of Mathematical Modelling, Technical University of Denmark (1996)

The parameters nx and ny define the number of pixels in x and y direction. The dynamic range of the values is between 0.0 and 1.0.