i split the image pixels into many small matrices
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parvatham vijay
el 23 de Oct. de 2019
Comentada: Rik
el 1 de Nov. de 2019
i split the image pixels into many small overlapping matrices
block(:,:,kk+j)=grey_img((i:i+2),(j:j+2))
i want to recombine this overlapping matrices how please help
2 comentarios
Rik
el 23 de Oct. de 2019
How do you want to recombine this? Purely based on the variable name I think the blockproc function might be a better choice.
Rik
el 23 de Oct. de 2019
Comment posted as answer by parvatham vijay:
Thank you
how to use blockproc for dividing the 256x256 matrix into 3x3 matrix with overlapping,kindly help
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Rik
el 23 de Oct. de 2019
The blockproc function works on distinct blocks. If you want a sliding window operation you need to use a function like nlfilter.
A = imread('cameraman.tif');%load an included 256x256 example image
fun=@(x) max(x(:));
B=nlfilter(A,[3 3],fun);
%show input and output
figure(1),clf(1)%only use clf during debugging
subplot(1,2,1)
imshow(A)
title('original')
subplot(1,2,2)
imshow(B)
title('filtered')
The function can be as complicated as you want it to be.
2 comentarios
Rik
el 27 de Oct. de 2019
what is function @(x), i couldn't get idea,pl.explain how to use function
Thank you
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parvatham vijay
el 1 de Nov. de 2019
1 comentario
Rik
el 1 de Nov. de 2019
Please stop posting your comments (or questions) as answer. Also, your question is unformatted, making it difficult to understand. Please use the layout tools to make your question more readable.
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