How do i improve this loop?

1 visualización (últimos 30 días)
charuleelaa vanilavarasu
charuleelaa vanilavarasu el 21 de Mzo. de 2016
Comentada: jgg el 22 de Mzo. de 2016
[row column page] = size(Image3)
for i = row
for j = column
if Image3 (i, j, 1) > 350
if Image3 (i, j, 2) > 350
if Image3 (i, j, 3) > 350
Image3 (i, j, 1) = 0.0;
Image3 (i, j, 2) = 0.0;
Image3 (i, j, 3) = 0.0;
end
end
end
end
end
I tried this:
mask = Image3(:,:,1)>350 & Image3(:,:,2) > 350 & Image3(:,:,3) > 350;
Image3 = Image3 .* mask(:,:,[1 1 1]);
But it doesn't work. Just displays a black image. What am i doing wrong?

Respuestas (1)

jgg
jgg el 21 de Mzo. de 2016
Your approach should work. Try this instead:
Image3 = randn(10,10,3)+355; %example data
mask = Image3(:,:,1) > 350 & Image3(:,:,2) > 350 & Image3(:,:,3) > 350;
mask = repmat(mask,1,1,3);
Image3(mask) = 0.0;
  2 comentarios
charuleelaa vanilavarasu
charuleelaa vanilavarasu el 21 de Mzo. de 2016
Still doesn't work. This is what i get when i ran the above code.
jgg
jgg el 22 de Mzo. de 2016
You need to post your code; this code works fine. You have something unexpected going on with your Image3 matrix. Are you sure it has anything in which those three criteria are met?

Iniciar sesión para comentar.

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by