Loop overwriting previous file

2019 9 12
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更新时间：2019 9 13
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Hi, I am trying to automate uncollaging collaged images. I have a folder with a bunch of collaged images that are already binary. When I run my loop and use regionprops it only ends up saving information for the last image in the folder... how do I fix this???
for n = 1:total_images_binary
binary_Images=fullfile(image_folder_binary, filenames_bin(n).name) ; % its will specify images names with full path and extension
our_images_binary = imread(binary_Images); % read images
labeledImage = bwlabel(our_images_binary,8); % Label each blob so we can make measurements of it
blobMeasurements = regionprops(labeledImage, our_images_binary, 'all');
numberOfBlobs = size(blobMeasurements, 1);
end

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no zoop
no zoop 2019-9-13
continuation on this question.... I am trying to get the other properties on the image so I can crop them out, but again it only loops through the last image. I thought add the (n) to end of numberOfBlobs would help, but nothing
for k = 1 : numberOfBlobs (n) % Loop through all blobs.
% Find the mean of each blob. (R2008a has a better way where you can pass the original image
% directly into regionprops. The way below works for all versions including earlier versions.)
thisBlobsPixels = blobMeasurements(k).PixelIdxList; % Get list of pixels in current blob.
meanGL = mean(our_images_binary(thisBlobsPixels )); % Find mean intensity (in original image!)
meanGL2008a = blobMeasurements(k).MeanIntensity; % Mean again, but only for version >= R2008a
blobArea = blobMeasurements(k).Area; % Get area.
blobPerimeter = blobMeasurements(k).Perimeter; % Get perimeter.
blobCentroid = blobMeasurements(k).Centroid; % Get centroid one at a time
blobECD(n) = sqrt(4 * blobArea / pi); % Compute ECD - Equivalent Circular Diameter.
fprintf(1,'#%2d %17.1f %11.1f %8.1f %8.1f %8.1f % 8.1f\n', k, meanGL, blobArea, blobPerimeter, blobCentroid, blobECD(k));
end
Walter Roberson
Walter Roberson 2019-9-13
blobECD(k) = sqrt(4 * blobArea / pi);
perhaps.

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Walter Roberson
Walter Roberson 2019-9-13

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for n = 1:total_images_binary
binary_Images=fullfile(image_folder_binary, filenames_bin(n).name) ; % its will specify images names with full path and extension
our_images_binary = imread(binary_Images); % read images
labeledImage = bwlabel(our_images_binary,8); % Label each blob so we can make measurements of it
blobMeasurements = regionprops(labeledImage, our_images_binary, 'all');
numberOfBlobs(n) = size(blobMeasurements, 1);
end

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no zoop
no zoop 2019-9-13
why does put the (n) after numberOfBlobs work? By using the (n) does it know to loop thru the other images?
Walter Roberson
Walter Roberson 2019-9-13
(n) is indexing into an array. The first time around you write into numberOfBlobs(1), the second time into numberOfBlobs(2), then into numberOfBlobs(3), and so on.

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