n-D look up table editor - adding rows / columns

1 回表示 (過去 30 日間)
Michal Schreiner
Michal Schreiner 2022 年 2 月 23 日
コメント済み: Voss 2022 年 2 月 25 日
Hello,
I would like to ask if there is possibility to edit look up tables in n-D size (3-D in my case)?
I have matrice 9x5x6 and i need to put these data to the 3-D lookuptable.
For 2-D LUT i found that it is possible to add rows and columns, but not in n-D.
Is there any easy way how to create table from excel data?
Thanks for your help
  1 件のコメント
Voss
Voss 2022 年 2 月 25 日
It is possible to add new "slices" (i.e. 2D matrices) into a 3D array:
format compact
x = zeros(2,4,3)
x =
x(:,:,1) = 0 0 0 0 0 0 0 0 x(:,:,2) = 0 0 0 0 0 0 0 0 x(:,:,3) = 0 0 0 0 0 0 0 0
new_slice = ones(2,4);
x = cat(3,x(:,:,1:2),new_slice,x(:,:,3))
x =
x(:,:,1) = 0 0 0 0 0 0 0 0 x(:,:,2) = 0 0 0 0 0 0 0 0 x(:,:,3) = 1 1 1 1 1 1 1 1 x(:,:,4) = 0 0 0 0 0 0 0 0
That's a 2-by-4 matrix of all ones being inserted at index 3 in the third dimension of x. You can just as easily insert 2D matrices into a 3D array in any dimension, if the sizes are the same in the other dimensions.
Is this the kind of thing you're asking about?

サインインしてコメントする。

回答 (0 件)

カテゴリ

Help Center および File ExchangeLogical についてさらに検索

製品


リリース

R2021b

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by