This graph shows Education Performance of 15 year olds from select countries and regions in 
2009. The graph shows reading and math and a rank out of 65. Range is from 0 to 600 students.
Error using .*
Matrix dimensions must agree.

Error in plotSpotlight (line 30)
    output = repmat(a,[1 1 3]).*single(im)/255;

Error in plot_individual_user_maps (line 49)
        [heat] = plotSpotlight(im,heatmap,3);