Loop overwriting previous file

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

[no zoop]

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]

blobECD(k) = sqrt(4 * blobArea / pi);	

perhaps.

Answer 1

[Walter Roberson]

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

[no zoop]

why does put the (n) after numberOfBlobs work? By using the (n) does it know to loop thru the other images?

[Walter Roberson]

(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.