halftoning(ordered dithring)

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ram
ram 2011-4-7
移动：DGM 2023-12-29
i have a small problem in dithring code when i run the code i get this massage error:
??? Error using ==> gt Matrix dimensions must agree.
i chang the matrix size in repmat(d,128,128) but even of that i get the same message error also i search for alooong time but i could not find the solution for this problem
this is my code: f=imread('2.png'); f2=rgb2gray(f); imshow(f2) d=[0,128;192,64]; r=repmat(d,128,128) f3=f2>r;imshow(f3)
plz i need a small help

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Paulo Silva
Paulo Silva 2011-4-7
f2 and r don't have the same dimensions for sure, that gt in the error stands for greater than. try this:
isequal(size(f2),size(r))
if the answer is 0 they aren't of equal dimensions
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Paulo Silva
Paulo Silva 2011-4-7
移动：DGM 2023-12-29
yes
ram
ram 2011-4-7
移动：DGM 2023-12-29
thx alot i realy appreciate your help
i spend the whole week looking 4 the solution
u realy save my time
:)

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