SHEPP generates the famous Shepp and Logan image in computed tomography
Tests:
T=shepp;imagesc(T),axis('square')
T=shepp(128);imagesc(T),axis('square')
T=shepp(128,100);imagesc(T),axis('square')
T=shepp(128,100,2);imagesc(T),axis('square')
T=shepp(128,128,1,1);imagesc(T),axis('square')
T=shepp(128,128,2,1);imagesc(T),axis('square')
T=shepp(128,100,2,2);imagesc(T),axis('square')
T=shepp(128,100,2,3);imagesc(T),axis('square')
T=shepp(128,100,2,4);imagesc(T),axis('square')
T=shepp(128,100,2,5);imagesc(T),axis('square')
T=shepp(128,100,2,6);imagesc(T),axis('square')
T=shepp(128,100,2,7);imagesc(T),axis('square')
T=shepp(128,100,2,8);imagesc(T),axis('square')
Author: Ali Mohammad-Djafari