problem in writing a function
1 Ansicht (letzte 30 Tage)
Ältere Kommentare anzeigen
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
Akzeptierte Antwort
Image Analyst
am 16 Jun. 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;
Weitere Antworten (1)
Walter Roberson
am 16 Jun. 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))
0 Kommentare
Siehe auch
Kategorien
Mehr zu Calculus finden Sie in Help Center und File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!