Deleting duplicate images in 3-dimesional matrix
2 views (last 30 days)
Show older comments
Hello
I have a quite simple question that I can not solve.
I have a stack of images in a matrix N x M x D. Is there a way to delete duplicated images may be included in this matrix easily ?
I have some complex for loop algorithm that I could try to implement but I was thinking they may be an easier way.
Thank you in advance
0 Comments
Accepted Answer
Teja Muppirala
on 1 Jul 2012
%First, I'll make some sample data with some duplicates:
A = rand(200,200,50);
A(:,:,16) = A(:,:,41);
A(:,:,32) = A(:,:,41);
A(:,:,22) = A(:,:,29);
%Step 1. Convert the 3d matrix into a bunch of rows
sizeA = size(A);
A_rows = reshape(A,[],sizeA(3))';
%Step 2. Call unique on the rows
A_unique = unique(A_rows,'stable','rows');
%Step 3. Reshape the rows back into a 3d matrix
A_unique = reshape( A_unique' ,sizeA(1),sizeA(2),[]);
0 Comments
More Answers (0)
See Also
Categories
Find more on Logical in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!