フィルターのクリア
フィルターのクリア

split array into subarrays according to the labels

2 ビュー (過去 30 日間)
Katherine Zheng
Katherine Zheng 2022 年 9 月 3 日
回答済み: Chunru 2022 年 9 月 5 日
Hi, I have a watershed transformed label matrix. I want to split them into subarrays maybe cells based on the region labels and each cell should also has the surrounding elements labeled with 0. Please help how this can be achieved. Thanks in advance.
matrix attached.
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Katherine Zheng
Katherine Zheng 2022 年 9 月 4 日
@dpb, I have attached matrix.
dpb
dpb 2022 年 9 月 4 日
is
load L
imagesc(L)
colorbar
I don't have and some reason can't load .mat file here so can't carry on with image processing TB but I'm guessing the edge detection stuff therein would be helpful.

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回答 (1 件)

Chunru
Chunru 2022 年 9 月 5 日
Ran in:
load(websave("L.mat", "https://www.mathworks.com/matlabcentral/answers/uploaded_files/1116785/L.mat"))
whos
Name Size Bytes Class Attributes L 51x51 2601 uint8 cmdout 1x33 66 char
ul = unique(L)';
% split them into subarrays maybe cells based on the region labels
% This description is not clear enough
for i=1:max(ul)
subregion{i} = L == i;
end
subregion{12} % top left corner subregion
ans = 51×51 logical array
1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 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