generation of vector using for loop

hai friends i want to convert each image as column vector and store each column vector in a matrix an form a big matrix ex each image is of the size of 80X80 .i dont know how to store these column vector in a matrix . anybody know means plz help me thanks

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files = dir('*.tif');

num_files = numel(files);%length also used

images = cell(1, num_files);

for k = 1:num_files

images{k} = imread(files(k).name);

f=images{k};

t=size(f);

%disp(t); a=zeros(t(1)*t(2),1);

k=1;

for i=1:t(1)

    for j=1:t(2)

        a(k)=f(j,i);

       %disp(b(j,i));

        k=k+1;
    end
end
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in this i want a1(k),a2(k)....or a(k) should be a matrix and i have to add each coloumn vector to that matrix . thanks

Answer 1

[Andrei Bobrov]

try this is:

files = dir('*.tif');
num_files = numel(files);%length also used
images = arrayfun(@(k)imread(files(k).name),1:num_files,'un',0);
a1 = cellfun(@(x)x(:),images,'un',0);
a = [a1{:}];

[muthu kumar]

thank u very much . now i got the idea