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find angle frome centroid area output not true

2 次查看（过去 30 天）
Adisorn Phanukthong
关闭： MATLAB Answer Bot 2021-8-20
im = imcrop(BW,[min(columns),min(rows),width,height]);
[r,c] = find(im,1,'first');
theta = atan2(cen(1,1)-c,cen(1,2)-r);
theta = radtodeg(theta);
hold on
plot(cen(:,1),cen(:,2),'b*')
line ([cen(:,1) r],[cen(:,2) c]);
%find center
[y, x] = ndgrid(1:size(BW, 1), 1:size(BW, 2));
cen = mean([x(logical(BW)), y(logical(BW))]);
I use this code find angle use find white area first but some picture has output of angle is 30 not true help me
  1 个评论
KSSV
KSSV 2017-2-21
If the angle result, is not true; check whether your cen exactly is center or not.

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