function letter=read_char(imgn, num_letters)

global templates

comp=[ ];

for n=1:num_letters

    sem=corr2(imgn, templates{1,n});

    comp=[comp sem];

end

vd=find(comp==max(comp));

Can someon please explain what the 'FOR' loop does and how 'vd' is calculated? Also, what is the variable 'comp' and what will it looks like as the array also contains itself and another variable 'sem' which is calculated from the corr2 function. thanks