about dynamic variable name for output

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Huseyin
Huseyin 2016-12-17
编辑： Stephen23 2019-6-19
Hi there, In the code below I want dynamic outputs for 'k' value in the loop. For instance if c=2 I want to get region_number1,region_number2,locs1, locs2 for the output. How can I do this?
for k=1:c
[region_number,locs]=find_region_pixels(first_order_big(:,:,k),orig_image);
end
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Huseyin
Huseyin 2016-12-17
first_order_big has multidimensional data inside. So this code gives me an error like: "In an assignment A(:) = B, the number of elements in A and B must be the same."
How can I fix this?
Walter Roberson
Walter Roberson 2016-12-17
region_number = NaN(1, c);
locs = cell(1, c);
for k = 1:c
[region_number(k),locs{k}] = find_region_pixels(first_order_big(:,:,k),orig_image);
end

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回答（2 个）

Stephen23
Stephen23 2016-12-17
编辑：Stephen23 2019-6-19
  1 个评论
Jan
Jan 2016-12-17
编辑：Jan 2016-12-17
100 votes from me.
@Mathworks: Please let this answer appear whenever a user types the terms "dynamic" and "variable" in one sentence.

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Image Analyst
Image Analyst 2016-12-17
Yes, you can use regionprops, which will measure those things. Then put the results into a cell array:
for k = 1 : numberOfImages
thisLabeledImage = first_order_big(:,:,k);
% Ask for PixelList, which is a list of all (x,y) points that are white/true/1 in the labeled image.
props = regionprops(thisLabeledImage ,orig_image, 'PixelList');
% There may be more than one blob in the image, so props is a structure array.
% For this image, just store this image's blobs' coordinates into a cell array for use later.
blobPixels{k} = props(k);
end

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