I reshaped the image elements 256256 into 161 linear array using the following code. There is 16 linear arrays in a variable (ex:tv). Now i need to retrieve the first array of variable (tv). ie, i need tv(1), tv(2)... tv(16). Please say the code.

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divya taru 2016-2-19

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https://ww2.mathworks.cn/matlabcentral/answers/269005-i-reshaped-the-image-elements-256-256-into-16-1-linear-array-using-the-following-code-there-is-16-l

评论： divya taru 2016-2-21

I=imread('cameraman.tif'); I=double(I); Im=size(I); %find the size of the image [nr nc nd]=size(I); % Divide into blocks disp(nr); disp(nc);

% Divide into blocks m=64; n=64; row=1; column=1; i=1; j=1; sum=0; count=0; nnn=1; er1=0; for i=1:4:16

    for j=1:4:16
      block=I(i:i+3,j:j+3);
      disp(block)
      T = rand(16,16); % Size of all your vectors, concatenated
      Tr = reshape(T,[4,4,16])
      %convert 4X4 into 16X1 column vector
      tv=reshape(block,16,1);
      disp(tv)
     count=count+1
      column=column+4;
   end
   row=row+4;

end

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Image Analyst 2016-2-20

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I didn't delve into your code but I see you creating a 16x1 vector in it:

tv=reshape(block,16,1);

so what's the problem?

thank you sir for your reply again. i used your code. but i am having the following error sir. please guide me. because i am very new to matlab. sorry for the disturbance. please answer me sir. the error is: ??? Error using ==> reshape To RESHAPE the number of elements must not change.

Error in ==> array4 at 11 tv(:, column) = reshape(I,[4,4,16]);

divya taru 2016-2-21