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area calculation of black part

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Smruti Khobragade
评论： KSSV 2020-2-5
hello,
i have to calculate the area of black part how can i do it and also which image should i use green or binary?

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KSSV
KSSV 2020-2-5
A crude/ rough estimate
I = imread('binary2.jpg') ;
[y,x] = find(I<=180) ;
iwant = nnz(x) ;
imshow(I)
hold on
plot(x,y,'.r')

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