Subplot images from database folder using index value.

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.

Answer 1

[Image Analyst]

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.

Answer 2

[Image Analyst]

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.