Reading different images in a folder when they have similar extensions

Hi,

Let's say I have 6 images in a folder. Three images are named SOU_123_001.tif , SOU_123_002.tif, SOU_123_003.tif, S and the other three images are labelled SOU_123_001_bin.tif, SOU_123_002_bin.tif, SOU_123_003_bin.tif. So the difference between the two sets of images files is the bin in the file name, I am able to use bin to specify only the bin images... code below

image_folder_binary = 'SAME_PATH_WITH_BOTH_FILE_TYPES';
filenames_bin = dir(fullfile(image_folder_binary, '*bin.tif')); % read all images with a sppecified extention, its tif in our case
binary_images = numel(filenames_bin);

I am not sure how to specify the non bin tif images.

Any help?

Answer 1

[Sourav Ghai]

Hi,

You can list the total number of files and subtract the '_bin.tif' files from them.

This can try this workaround.

clc;
clear all;
image_folder_binary = 'SAME_PATH_WITH_BOTH_FILE_TYPES';
filenames_bin = dir(fullfile(image_folder_binary,'*bin.tif'));
filenames_bin_2 = dir(fullfile(image_folder_binary,'*.tif'));
x = {filenames_bin.name}
y = {filenames_bin_2.name}
C = setdiff(y,x)
non_binary_images = numel(C)
binary_images = numel(x)

[no zoop]

Hi,

This works great but when I go to read the file in, it will still end up reading the bin files.

for j = 1:non_binary_images
    original_Images=fullfile(image_folder_binary, filenames_bin_2(j).name) ; % its will specify images names with full path and extension
    OG_images{j} = imread(original_Images); % read images
end 

I assume its the filenames_bin_2(j).name that will end up reading the images in order of the file number, 001.tif, 001_bin.tif and then 002.tif.

Any idea how to do this? maybe without fullfile?

[Sourav Ghai]

You can use 'C' instead of 'filenames_bin_2'.

original_Images=fullfile(image_folder_binary, C(j)) ;

This will give you the list of non-bin files in the folder.

[no zoop]

Hey, for anyone else reading this... C ends up being a cell array and you can't use full file with a cell array, you either need to change to a character to vector or string scalar. I couldn't figure out how to chage it into a struct, but instead turned it into a string using...

C = string(C)

and it worked!

If anyone knows how to properly convert this into a struct, I would love to know too!