Neighbor and center points of matrix
6 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
Hi, I have matirx of 256 \times 256. I want to find and save indices of nine neighbors of each center point in 1D matrix or in 256\times 256 matrix.
2 commentaires
Jan
le 30 Déc 2020
What does "each center point" mean? Can you give a small example of the wanted output?
Réponses (1)
Steve Eddins
le 30 Déc 2020
You'll need to pay careful attention to what happens with matrix elements that are on the edges of the matrix, as these elements don't have nine neighbors. I often zero-pad to simplify the code.
Also, in that blog post, you'll see this line of code:
neighbors = bsxfun(@plus, idx, neighbor_offsets)
In today's MATLAB, you can write that more simply as:
neighbors = idx + neighbor_offsets
0 commentaires
Voir également
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!