Subplot images from database folder using index value.
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Hello, I have this code which out put returns 10 filenames corresponding to 10 images I have in my folder. How I can I change the code so that instead of a list to the related filenames (relation is to v=similarity value for each image and i=index for corresponding file name) in the same sorted order, I get the 10 corresponding images into 1 figure/subplot ? I am learning and still finding difficulit to connect all the dots.
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Image Analyst
2019-12-11
I don't understand the question, but to sort by decreasing values of r, read in the image for each r, and display the image, for 10 images, you can do
% Get the filenames somehow....
files = dir('*.png');
filenames = {files.name}
% Get r somehow... whatever method you have...
r = rand(1, length(files));
% Sort the r variable.
[sorted_r, sortOrder] = sort(r(:), 'descend');
% Now sort filenames the same way as r was sorted. filenames should already exist by this line.
filenames = filenames(sortOrder);
% Now display the first 10
hFig = figure;
for k = 1 : min([length(filenames), 10])
subplot(3, 4, k);
thisImage = imread(filenames{k});
imshow(thisImage);
caption = sprintf('Image %d: "%s"\nr = %.3f', ...
k, filenames{k}, sorted_r(k));
title(caption, 'FontSize', 12);
axis('on', 'image');
drawnow;
end
hFig.WindowState = 'maximized'; % Requires fairly recent version of MATLAB.
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Image Analyst
2019-12-11
Regarding your edited question (where you took out mention of the "r" variable over which you wished to sort), you might want to look at the montage() or imtile() functions.
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