清空筛选条件
清空筛选条件

distance

3 次查看（过去 30 天）
Adam
Adam 2012-4-11
Hi, I'm trying to find middle distance. We did it this way
c1=handles.centroids(:,1);
c2=handles.centroids(:,2);
d1=sqrt(((xi(:,1)-c1))^2+(yi(:,1)-c2)^2);
d11=sqrt(((xi(:,2)-c1))^2+(yi(:,2)-c2)^2);
vz1=(d1+d11)/2;
str = ['strední vzdalenost v prvním okně je ', num2str(d1), ' pixelu.'];
disp (str);
but my voice is a mistake vcem Does anybody know the problem?
??? Error using ==> mpower
Inputs must be a scalar and a square matrix.
Thank you very much

请先登录，再回答此问题。

回答（1 个）

Andrei Bobrov
Andrei Bobrov 2012-4-11
use .^
d1=sqrt(((xi(:,1)-c1))^2+(yi(:,1)-c2)^2);
d11=sqrt(((xi(:,2)-c1)).^2+(yi(:,2)-c2).^2);
on comment
d = sqrt((xi-c1).^2+(yi-c2).^2);
vz1 = mean(d);
  5 个评论
显示 3更早的评论
Adam
Adam 2012-4-13
Well here is the complete code as I realized. When inserting one point so it works, for more no:
file_name ='bw.bmp';
BW = imread(file_name);
imshow (BW)
s3 = regionprops(BW, 'centroid');
centroids3 = cat(1, s3.Centroid);
hold on
plot(centroids3(:,1), centroids3(:,2), 'r*')
hold off
hold on
n=0;
[a,b,but] = ginput(2);
n = n+1;
x(:,n) = a;
y(:,n) = b;
plot(a,b,'r*');
hold off
c1=centroids3(:,1);
c2=centroids3(:,2);
d1=sqrt(((a-c1)).^2+(b-c2).^2);
d11=sqrt(((a-c1))^2+(b-c2).^2);
vz1=(d1+d11)/2;
str = ['strední vzdalenost v prvním okně je ', num2str(vz1), ' pixelu.'];
disp (str);
can be downloaded from the link picture:
http://www.ulozto.cz/xAEvHHw/bw-bmp
Adam
Adam 2012-4-13
I had the problem resolved but it is not very elegant solution ... I'll happy with any help.
thank you

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 Logical 的更多信息

标签

产品

Community Treasure Hunt

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

Start Hunting!

Translated by