problem in writing a function
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What is the problem with this code?
function Y = BWMfn(B)
[m,n]=size(B);
Y=zeros(2*m,2*n);
for i=1:m;
for j=1:n;
if B(i,j)<128
Y(2*i-1,2*j-1)=0;
else
Y(2*i-1,2*j-1)=1;
end
end
end
BWM is a matrix. Please reply asap
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Image Analyst
le 16 Juin 2013
Why do you even want this anyway? It's kind of like simple thresholding
Y = B >= 128;
except that it has rows and columns of zeros interleaved. Why would you want that? By the way, you could vectorize it by doing:
Y = zeros(2*size(B));
Y(1:2:end, 1:2:end) = B >= 128;
Plus de réponses (1)
Walter Roberson
le 16 Juin 2013
You need to start the function from the command line, not by clicking on "Run" or pressing F5. For example at the command line command
BWMfn(rand(3,4))
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