convert 2-D to I-D matrix

Question

Yasmin Tamimi 2011-5-5

0
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https://ww2.mathworks.cn/matlabcentral/answers/6834-convert-2-d-to-i-d-matrix

How to convert from 15*15 2D matrix to 1d matrix. This is the code I used but it seems that there is something wrong when I run it because it takes the value of the first row only??

function C=OneCamera(x,y) for i=1:15 for j=1:15 x=1 y=1

    d=(i-x)^2+(j-y)^2;
    if d<36 C(i,j)=1;else C(i,j)=0;
    end;
end;

% S=[1 ,2] B=C(1,:) % Q=C(5,:)

S=[B B] end

Your help is highly appreciated..

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Answer 1

Andrei Bobrov 2011-5-5

3
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https://ww2.mathworks.cn/matlabcentral/answers/6834-convert-2-d-to-i-d-matrix#answer_9341

在 MATLAB Online 中打开

...convert from ... 2D matrix to 1d matrix...

A = randi(120,3); % matrix 2D size 3x3
S = A(:); % matrix 1D size 3x1 or
S = A(:)'; % matrix 1D size 1x3 or
S = reshape(A,[],1); % matrix 1D size 3x1 or
S = reshape(A,1,[]); % matrix 1D size 1x3