How to get specific value?
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A = [5 2 3 8 7 1 2 2 3]
[labeledA, numRegions] = bwlabel(A < 4)
% Get the size of the regions.
props = regionprops(labeledA, 'Area')
elementCounts = [props.Area]
In the command window:
A =
5 2 3 8 7 1 2 2 3
labeledA =
0 1 1 0 0 2 2 2 2
numRegions =
2
props =
2×1 struct array with fields:
Area
elementCounts =
2 4
And I get sth like this:
elementCounts =
2 4
value =
2 3 1 2 2 3
采纳的回答
Andrei Bobrov
2016-12-19
One way:
A = [5 2 3 8 7 1 2 2 3]';
b = A < 4;
ii = bwlabel(b);
elementCounts = accumarray(ii(ii>0),1)
value = A(b)
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