Subplotting many images in one figure

Hi there,

I am pretty ignorant about matlab but starting to learn.

Here I am trying to subplot a group of images located in a folder. The names of the pictures are like "Point01Pic1_140127","Point01Pic1_140128".... "Point02Pic1_140127", "Point02Pic2_140128"...

being the date the final part of the name. the idea is to plot all of them in the same figure with the purpose of comparison.

I am trying something like this:

clear all
clc

a = uigetdir;
A = dir( fullfile(a, '*.jpg') ); 
fileNames = { A.name }; 
for iFile = 1 : numel( A ) 
  newName = fullfile(a, sprintf( '%03d.jpg', iFile ) );
  movefile( fullfile(a, fileNames{ iFile }), newName );    
end 

subplottight(2,4,1), imshow('008.jpg', 'border', 'tight');
subplottight(2,4,2), imshow('006.jpg', 'border', 'tight');
subplottight(2,4,3), imshow('004.jpg', 'border', 'tight');
subplottight(2,4,4), imshow('002.jpg', 'border', 'tight');
subplottight(2,4,5), imshow('007.jpg', 'border', 'tight');
subplottight(2,4,6), imshow('005.jpg', 'border', 'tight')
subplottight(2,4,7), imshow('003.jpg', 'border', 'tight');
subplottight(2,4,8), imshow('001.jpg', 'border', 'tight');

Doing this way I am renaming the files like "001", "002" (I dont know how to handle the orig. names) etc getting a 2x4 subplot with the right arragement but I would like to use the original names (ie "Point02Pic2_140128" for example)and have all the pictures of "Point 1" in one row in cronological order, all the pictures of "Point2" in the next row etc.

I hope I explained myseld clear enough.

Thanks for the patience and any help will be appreciated.

Answer 1

[Mischa Kim]

Edu, this should do:

for ii = 1:8
    file_name = strcat('Point0',num2str(ceil(ii/4)),'Pic',num2str(ii-4*(ii>4)),'_140128.jpg')
    subplottight(2,4,ii), imshow(file_name, 'border', 'tight');
end

assuming your image files end with _140128 (not quite sure I understand the file name sequence). If they do not, I am sure with the above code snippet you can figure out how to adjust the code.

[Edu PL]

First of all, big thanks. I was not expecting an answer that fast...or even an answer :-) Very appreciated Mischa.

That is more or less what I meant but I would like to have in the rows all the pics corresponding to one point in dif dates, this is:

Point01Pic1_140127 Point01Pic1_140128 Point01Pic1_140129 etc...

Point01Pic2_140127 Point01Pic2_140128 Point01Pic2_140129 etc

Point02Pic1_140127 Point02Pic1_140128 Point02Pic1_140129 etc

Point02Pic2_140127 Point02Pic2_140128 Point02Pic2_140129 etc

your code is giving me all the pics of a point in the same row but I would like to have same pic of same point for differents dates. Probably it is just easy to implement but I am pretty bad with this damned thing.

Any ideas? thanks again and sorry to bother you.

[Edu PL]

it is as I stated. To clarify, this is a set of photos taken from different points.But there are more than one photo taken from some of the points, so they are named

Point01Pic1_140127 Point01Pic1_140128 Point01Pic1_140129 etc

and this I want to be in rows in the final subplot for being able to compare same photo same place but dif date. Second row will be

Point01Pic2_140127 Point01Pic2_140128 Point01Pic2_140129

if there is another photo shot from point1 or

Point02Pic1_140127 Point02Pic1_140128 Point02Pic1_140129

if there is not.

Buff It looks like difficult to explain but it is not really. thanks

[Mischa Kim]

Got it.

figure
for ii = 1:2
    for jj = 1:2
        for kk = 1:4
            file_name = strcat('Point0',num2str(ii),'Pic',num2str(jj),'_1401',num2str(kk+26),'.jpg')
            subplottight(4,4,8*(ii-1)+4*(jj-1)+kk), imshow(file_name, 'border', 'tight');
        end
    end
end

which works for a total of 16 images dated 140127 through 140130. If you have more images simply adapt the code accordingly.

Does that answer your question? If it does, please formally accept the answer.

[Edu PL]

Amazing! yes it does, smoothly!! thanks Mischa, you are a crack! :-)

[Edu PL]

hummm could you look down please? it looks like I responded to myself...

Answer 2

[Edu PL]

Hello Mischa,

Edu again here trying to solve something in matlab. Now I want to put a title or text in every picture of the set. I am arranging them putting together the same images but at a different time to check the changes. For example 8 images in two rows but each of them of the same place but at a different date. Next 2 rows are showing 8 more images of another site during the same different 8 dates.

How can I put the date in every image? in the example below it should be 4 differents dates in the two rows.

I hope I made this clear.

Thanks!

[Khan Bahadar Khan]

How can we add images in MATLAB like the displayed one.