--- /dev/null
+********* EXAMPLE 8
+* RECONSTRUCTION OF HEAD PHANTOM USING LINOGRAM AND FILTERED
+* BACKPROJECTION METHODS. SINC FILTER FOR LINOGRAM AND COSINE
+* FILTER FOR FBP.
+*
+create
+EXAMPLE 8 LINOGRAM RECONSTRUCTION
+spectrum monochromatic 75
+objects cx cy u v ang den
+elip 0.000 0.000 8.625 6.4687 90.00 0.416
+elip 0.000 0.000 7.875 5.7187 90.00 -0.206
+elip 0.000 1.500 0.375 0.3000 90.00 -0.003
+elip 0.675 -0.750 0.225 0.1500 140.00 0.010
+elip 0.750 1.500 0.375 0.2250 50.00 0.003
+segm 1.375 -7.500 1.100 0.6250 19.20 -0.204
+segm 1.375 -7.500 1.100 4.3200 19.21 0.204
+segm 0.000 -2.250 1.125 0.3750 0.00 -0.003
+segm 0.000 -2.250 1.125 3.0000 0.00 0.003
+segm -1.000 3.750 1.000 0.5000 135.00 -0.003
+segm -1.000 3.750 1.000 3.0000 135.00 0.003
+segm 1.000 3.750 1.000 0.5000 225.00 -0.003
+segm 1.000 3.750 1.000 3.0000 225.00 0.003
+tria 5.025 3.750 1.125 0.5000 110.75 0.206
+tria -5.025 3.750 1.125 0.9000 -110.75 0.206
+last 1.0
+phantom average 5
+115 0.1504
+raysum average 1
+1
+geometry
+linogram
+measurement perfect
+background absorption is 0.0
+run
+picture test
+projection real
+execute lino
+EXAMPLE 8a LINOGRAM METHOD
+sinc 1.0
+execute conv
+EXAMPLE 8b FILTERED BACKPROJECTION
+cosine 1.0 2
+end