shepp_logan

cuqi.data.shepp_logan(size=128)

Modified Shepp-Logan phantom.

This head phantom is the same as the Shepp-Logan except the intensities are changed to yield higher contrast in the image.

Parameters:

size (int) – Size of the image to generate. Image is square with sides of length size.

Returns:

img – Image of the phantom.

Return type:

ndarray

Notes

Python translation from phantomgallery code in AIRToolsII jakobsj/AIRToolsII.

Original paper: L. A. Shepp and B. F. Logan, “The Fourier reconstruction of a head section,” in IEEE Transactions on Nuclear Science, vol. 21, no. 3, pp. 21-43, June 1974. DOI:10.1109/TNS.1974.6499235