CODEWITHSUNDEEP
matlabfile-handling
Abhishek Thakur
Abhishek Thakur

Reputation: 17025

index of a file in a folder

I have a database of around 1000 images and I'm doing texture matching. I have already created the feature vectors and creating feature vectors for one image takes a few minutes. Now I'm doing the matching part. As i dont wanna calculate features for the test image again, I would like to find its index in a given folder.

example: User chooses image_XXXXX.jpg. and I want the "index" of this file i.e, whats its position in that folder

Can anyone tell me how do i find the index of a file(in a folder) chosen by user using MATLAB?

Upvotes: 0

Views: 261

Answers (1)

H.Muster
H.Muster

Reputation: 9317

You can use strcmp to find this index: 

% get all file names in folder
tmp = dir('*.jpg');

% logical index of the chosen file
logicalIDX = strcmp({tmp.name}, 'image_XXXXX.jpg');

% numerical index of the chosen file
numericIDX = find(logicalIDX); 

% probably more interesting for this particular case: 
% the numerical index of all the files that have to be processed:
numericIDX = find(~logicalIDX);

Upvotes: 1

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