How do I make a loop for multiple identical actions?
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I need to read some images in matlab like:
>> A1=dicomread('IM-0001.dcm');
>> A2=dicomread('IM-0002.dcm');
>> A3=dicomread('IM-0003.dcm');
>> A4=dicomread('IM-0004.dcm');
>> A5=dicomread('IM-0005.dcm');
I have 180 of those images. Is there a way to do it automatically so the first image is stored as A1 and the last as A180?
Cheers.
采纳的回答
Sean de Wolski
2012-9-11
You don't need the cell at all then! So here are both ways:
1) Rather than preallocating img as a cell, preallocate it as a three d array:
img = zeros(128,128,170,'uint8');
for ii = 1:170
img(:,:,ii) = dicomread(etc)
end
2) Or you could take the cell and concatenate the elements along the third dimension using the comma-separated list expansion:
img = cat(3,img{:});
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2 个评论
Tomislav
2012-9-12
Sean de Wolski
2012-9-12
A mistake we all make very frequently :)
It gets me the worst when I miss the ';' once; it hangs around when I use the up arrow to pull up recent lines to run the same semicolon missing line again...
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Walter Roberson
2012-9-11
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3 个评论
Tomislav
2012-9-11
Sean de Wolski
2012-9-11
Preallocate img as a cell array or 3d array (3d array only if all images the same size)
Then:
img = cell(170,1);
for ii = 1:170
img{ii} = dicomread(['C:\Users\Tomek\Documents\MATLAB\dicoms\IM-0002-' num2str(ii,'%04i') '.dcm'])
end
Now each element of img is the corresponding image:
imshow(img{120})
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