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how to split and store it into one arrray?

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Tia
Tia 2013-7-15
关闭： MATLAB Answer Bot 2021-8-20
hello.. i'm trying to split image into block 8x8, then extract the pixel values from each block. i want to move position of blocks. then store it back into 1 array..how do i get it?sorry, i am newbie thanks

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David Sanchez
David Sanchez 2013-7-15
I = your_image;
[rows,cols] = size(I); % dimensions of your image
M = cell(8,8);
for k=1:8
for l = 1:8
M{k,l} = I( (rows*(k-1)/8 + 1):(rows*k/8) , (cols*(l-1)/8 +1):(cols*l/8) );
M{k,l} = reshape8M{k,l},(rows*cols/64),1); % reshape into single column
end
end
  2 个评论
David Sanchez
David Sanchez 2013-7-15
here with the typo in the 7th line corrected:
I = your_image;
[rows,cols] = size(I); % dimensions of your image
for k=1:8
for l = 1:8
M{k,l} = I( (rows*(k-1)/8 + 1):(rows*k/8) , (cols*(l-1)/8 +1):(cols*l/8) );
M{k,l} = reshape(M{k,l},(rows*cols/64),1); % reshape into single column
end
end
Jan
Jan 2013-7-15
@David: You can edit your question instead of adding a comment with a corrected version.

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